Glossary

Trail braking means keeping some brake pressure applied as you tip into a corner, rather than releasing the brakes completely before turning. This loads the front tire, giving it more grip for turning, and allows you to carry more speed into the corner entry.

Most riders release the brakes fully before turn-in because it feels safer. The problem is that releasing the brakes suddenly unloads the front tire right when you need it most — at the start of the turn. Trail braking solves this by gradually tapering brake pressure as lean angle increases, keeping the front tire loaded throughout the entry phase.

As a practical example, imagine entering Turn 5 at a typical track. Without trail braking, you brake in a straight line, release fully, then tip in. With trail braking, you begin tipping in while still on the brakes, smoothly releasing pressure as the bike leans. The result is a later, faster entry with more front-end confidence. Learning to trail brake typically unlocks 0.3-0.5 seconds per corner.

In LapBrain, you can see whether you are trail braking by looking at the overlap between brake pressure and lean angle in the turn detail view. When coaching suggests "no trail braking detected," it means you are releasing the brakes before the bike begins to lean.

The braking point is the specific location on track where you first apply the brakes to slow down for an upcoming corner. Getting this right is one of the most important skills in track riding — brake too early and you lose time on the straight, brake too late and you enter the corner too fast to make a clean turn.

Consistent braking points are more important than aggressive ones. A rider who brakes at the same spot every lap can build confidence and refine their entry speed gradually. A rider whose braking point wanders by 20 meters from lap to lap never builds that confidence base. This is why most coaches teach picking a visual reference — a crack in the pavement, a track marker, or a shadow — and aiming for it every lap.

As you get faster, your braking point moves later (closer to the corner). This happens naturally as your trail braking improves, because trail braking lets you carry braking deeper into the corner. But chasing a later braking point without the skills to manage corner entry speed is a common cause of running wide.

In LapBrain, braking point consistency is tracked across laps. You can see how your braking point compares between your fastest laps and your average laps, and coaching may suggest adjustments when your braking point is significantly earlier than your own best performance shows is possible.

The apex is the innermost point of your line through a corner — where the bike passes closest to the inside of the track. It is usually near the geometric middle of the turn, though many corners reward a late apex (clipping the inside edge past the midpoint) because it sets up a better exit.

The apex matters because it defines the shape of your entire corner. An early apex feels fast going in but forces you to run wide on exit, often requiring a throttle chop to stay on track. A late apex feels slower on entry but opens up the exit, letting you get on the throttle earlier and carry more speed down the following straight. Since straights are where you gain the most time, a slightly late apex is almost always faster overall.

Different corners call for different apex strategies. A single-apex turn has one clear inside point. A double-apex corner — common in long sweepers — has two distinct inside points with a brief straightening in between. An opposite-apex complex links two turns in opposite directions, requiring a compromise line.

LapBrain identifies your actual apex position by finding the minimum-speed point or the closest point to the inside of the turn. The turn detail view shows where your apex falls relative to the track geometry, so you can see whether you are apexing early, late, or on target.

Turn-in is the moment you commit to the corner by initiating lean. It marks the transition from straight-line or braking to actual cornering. A decisive turn-in — quick and confident — sets up the rest of the corner. A hesitant or gradual turn-in often leads to a poor line and lost time.

The turn-in point is closely related to the braking point and trail braking. Ideally, you begin turning in while still lightly on the brakes, so the front tire is loaded and ready to grip. The combination of a consistent braking point and a confident turn-in is what separates smooth, fast corner entries from nervous, inconsistent ones.

In LapBrain, the turn-in point is visible in the turn detail as the beginning of lean angle increase. Coaching may highlight inconsistent turn-in points across laps, which often signals uncertainty about corner entry speed or line choice.

A throttle chop is a sudden, unplanned closing of the throttle while the bike is leaned over in a corner. It typically happens when a rider enters a corner too fast or apexes too early, realizes they are running wide, and instinctively snaps the throttle shut. This abrupt deceleration shifts weight forward, compresses the front suspension, and can cause the rear tire to lose traction — exactly the opposite of what you want mid-corner.

The key issue is that throttle chops are reactive, not planned. Smooth riding means managing speed before the corner so you never need to chop the throttle once you are leaned over. If you find yourself chopping throttle frequently in the same corner, it usually means your entry speed is too high or your apex is too early.

In LapBrain, throttle chops are detected by looking for sudden drops in throttle position while lean angle is significant. When coaching highlights throttle chops, the recommended fix is almost always about improving the corner entry — better braking, a later turn-in, or more trail braking — rather than trying to manage the chop itself.

Roll-on refers to the smooth, progressive application of throttle from the apex through the exit of a corner. Rather than snapping the throttle open, you gradually increase it as the bike stands up and the contact patch grows, matching throttle to available traction.

A good roll-on is one of the most satisfying parts of track riding. It means you nailed the entry, hit a good apex, and now the bike is driving forward with increasing speed and stability. The throttle goes from closed (or maintenance) at the apex to wide open by the time you reach the exit and the bike is fully upright.

In LapBrain, the accel phase of each turn shows your throttle application from apex to exit. Coaching may suggest earlier or smoother roll-on when it detects hesitation or choppy throttle application in this phase.

Over-braking means scrubbing off more speed than the corner requires. The rider arrives at the turn-in point significantly slower than necessary, then has to accelerate back up through the corner. This wastes time both on the approach (braking longer than needed) and through the corner (accelerating from an unnecessarily low speed).

Over-braking is extremely common among developing riders. It feels safe — you can never crash from going too slow — but it represents one of the biggest sources of lost lap time. A rider who over-brakes by even 5 km/h in every corner can easily lose 1-2 seconds per lap compared to their own potential.

In LapBrain, over-braking is identified by comparing your minimum corner speed against your own best laps. When coaching highlights over-braking, the suggestion is typically to carry a bit more speed into the entry, often by improving trail braking rather than by braking later.

Under-braking means not slowing down enough before the corner, so you arrive at the turn-in point carrying more speed than you can manage through the turn. This usually results in running wide, a throttle chop, or excessive lean angle to make the corner work. Under-braking is less common than over-braking for most track riders, but it does occur — especially when riders try to push their braking point later without the skills to support it.

In LapBrain, under-braking appears as elevated entry speed relative to your successful fast laps, often followed by a throttle chop or wide exit line. Coaching may suggest an earlier or harder initial brake application.

Early braking means applying the brakes significantly before the point where braking actually needs to begin for the upcoming corner. The rider loses time on the straight by decelerating sooner than necessary. This is closely related to over-braking but specifically refers to where braking starts rather than how much total speed is lost.

Early braking is one of the most common habits among riders moving from the street to the track. On the street, braking early is smart — it builds in a safety margin. On the track, that safety margin is pure lost time. Coaching recommendations for early braking focus on gradually moving the braking point later, using consistent visual references, rather than trying to make a dramatic change all at once.

In LapBrain, early braking is detected by comparing where you begin braking relative to where your fastest laps show braking is needed. The delta between your typical braking point and your best braking point shows exactly how much margin you are leaving on the table.

Squaring off a corner means riding it as if it were a sharp angle rather than a smooth arc. The rider brakes hard in a straight line, makes an abrupt direction change at the turn-in point, then accelerates out in a roughly straight line. The result is a V-shaped path through what should be a smooth curve.

Squaring off usually happens because the rider is not comfortable trail braking. Without the ability to brake and turn simultaneously, the only option is to finish all braking before any turning begins, which creates the V-shape. Improving trail braking naturally rounds out the corner and eliminates the square shape.

In LapBrain, squaring off is visible in the GPS trace as a sharp inflection in the line through a corner. Coaching recommendations focus on developing trail braking and a smoother transition from braking to turning.

Roll speed (sometimes called mid-corner speed or maintenance speed) is the minimum speed you carry through the middle portion of a corner. Higher roll speed means you spend less time accelerating back up to straight-line speed, which directly translates to faster lap times.

Roll speed is arguably the most important number in any corner. A rider who carries 5 km/h more roll speed through a corner will be faster on exit by more than 5 km/h, because they start accelerating from a higher base. Over a full lap with 10-15 corners, small roll speed gains compound into significant time improvements.

In LapBrain, roll speed is shown as the minimum speed during the maintenance phase of each turn. Comparing roll speed between your laps — and especially between your best lap and your average — reveals where the biggest time gains are available.

A survival reaction is your body's instinctive response when something feels wrong on the motorcycle — the bike runs wide, the tire slides, or you suddenly feel like you are going too fast. Common survival reactions include chopping the throttle, grabbing the front brake while leaned over, stiffening your arms on the bars, and looking at the thing you are afraid of hitting instead of where you want to go.

The problem with survival reactions is that they almost always make the situation worse. Chopping the throttle mid-corner upsets the chassis. Grabbing the brake while leaned over can cause a front-tire slide. Stiff arms prevent the bike from self-correcting. These reactions are deeply wired and take deliberate practice to override.

In LapBrain, survival reactions show up as sudden throttle or brake inputs mid-corner. Coaching highlights these events so you can identify which corners trigger them and work on building confidence through those sections.

LapBrain breaks every corner into five phases that describe the progression through a turn. Understanding these phases helps you read your corner analysis and act on recommendations.

The five phases are: Entry (turn-in speed), Decel (trail braking zone), Maintenance (minimum speed through the apex), Accel (drive out of the corner), and Exit (speed carried onto the following straight). Each phase has its own metrics and its own coaching recommendations.

Not every corner has all five phases equally represented — a fast sweeper may have a very short decel phase, while a tight hairpin has a long one. The phase breakdown adapts to each corner's geometry.

A turn is a single corner on the track — one continuous change of direction. Turns are identified by designations like T5 (Turn 5), which correspond to the track's official or commonly used numbering. Every turn is broken down into phases (entry, decel, maintenance, accel, exit) for detailed analysis.

Turns are the fundamental unit of analysis in LapBrain. Each turn has its own set of metrics — entry speed, roll speed, apex position, exit speed — and its own coaching recommendations. Your lap time is essentially the sum of how well you ride each turn plus how fast you carry speed down each straight.

In LapBrain, turns are shown on the track map with their designations and are the primary way coaching organizes its recommendations. When coaching says "focus on T5," it means the analysis has identified that corner as your biggest opportunity for improvement.

A complex is a group of two or more turns that are linked closely enough that the line through one directly affects the next. Complexes are identified by designations like C1 (Complex 1). In a complex, you cannot optimize each turn individually — you have to find the best compromise line through the whole sequence.

For example, a chicane (left-right or right-left combination) is a typical complex. Trying to apex perfectly in the first turn might leave you out of position for the second. The fastest line through the complex often means sacrificing some speed in the first turn to set up a better exit from the last turn, since that exit leads onto a straight where speed matters most.

In LapBrain, complexes are analyzed both as a whole and turn-by-turn, so you can see how your line choices in one turn affect your performance in the next.

A straight is a section of track between corners where you are traveling in a roughly straight line, typically at full throttle. Straights are identified by designations like ST1 (Straight 1). Your speed on a straight is primarily determined by how well you exited the preceding corner — a good corner exit translates directly into higher straight-line speed.

In LapBrain, straights show your top speed and how quickly you reach it after the preceding corner exit. Comparing straight speeds between laps is a quick way to see whether corner exit improvements are translating into real time gains.

A sector is a defined portion of the track used for timing comparisons. Sectors are identified by designations like S1 (Sector 1). Most tracks are divided into three or four sectors. Sector times let you compare performance in specific parts of the track across laps and sessions, making it easier to pinpoint where you are gaining or losing time.

In LapBrain, sector times appear in the lap comparison view. If your overall lap time improved but Sector 2 got slower, you know exactly where to focus. Sector analysis is especially useful across sessions — you can see which parts of the track improved as you learned the layout.

The entry phase is the first part of a turn, starting where you begin to set up for the corner and ending where significant deceleration begins. It covers the transition from straight-line riding into the corner — the approach, initial brake application, and the start of directional change.

The entry phase sets the tone for the entire corner. A smooth, confident entry with the right speed leads to a good apex and a strong exit. A rushed or inconsistent entry cascades into problems through the rest of the turn. This is why most coaching focuses heavily on entry technique — getting the entry right makes everything else easier.

In LapBrain, the entry phase is the first of five phases shown in the turn detail view. Key metrics for the entry include speed at the start of braking, how much trail braking overlap exists, and consistency of the entry line across laps.

The decel phase covers the portion of the turn where the bike is actively losing speed — from the hardest braking through the taper of brake pressure as the bike leans in. This is where trail braking happens, and where the front tire is working hardest.

The decel phase is critical for setting your roll speed. How much speed you scrub off here — and how smoothly — determines what speed you carry into the middle of the corner. Over-braking in the decel phase means arriving at the maintenance phase too slowly. Under-braking means you carry too much speed and have to correct mid-corner.

In LapBrain, the decel phase is the second of five turn phases. Coaching recommendations about trail braking, over-braking, and braking consistency relate primarily to what happens in this phase.

The maintenance phase is the middle of the corner where you are neither braking nor accelerating significantly — you are maintaining speed through the turn. This is typically the slowest part of the corner and where the bike is at or near maximum lean angle. The apex usually falls within or near the maintenance phase.

Roll speed — the minimum speed during this phase — is one of the most important metrics for any corner. Higher roll speed means less time spent at the slow point of the corner and a head start on the following acceleration. Even small improvements in roll speed (2-3 km/h) can translate to meaningful lap time gains.

In LapBrain, the maintenance phase is the third of five turn phases. The key metric here is roll speed, and coaching may suggest ways to carry more speed through this phase, such as improved trail braking technique or a different line choice.

The accel phase covers the portion of the turn from the apex onward, where you are progressively opening the throttle and the bike is accelerating. This phase is all about the roll-on — smoothly and progressively applying throttle as the bike stands up and the contact patch grows.

The accel phase directly determines your exit speed, which in turn determines your speed down the following straight. Getting on the throttle earlier and more smoothly means higher exit speed and a faster straight. This is why a slightly late apex often produces faster lap times — it opens up the accel phase and lets you get on the throttle sooner.

In LapBrain, the accel phase is the fourth of five turn phases. Coaching recommendations about throttle application, roll-on smoothness, and exit speed relate to this phase.

The exit phase is the last part of a turn, where the bike is straightening up and transitioning back to full throttle. Exit speed here determines how fast you enter the following straight, making it one of the most impactful parts of any corner.

A clean exit is the payoff for a good entry, a solid apex, and a smooth roll-on. If you nailed all the preceding phases, the exit phase takes care of itself — you just continue opening the throttle as the bike stands up. Problems in the exit phase (running wide, throttle chops) almost always trace back to something that went wrong earlier in the corner.

In LapBrain, the exit phase is the fifth and final turn phase. Exit speed is a key metric, and large variations in exit speed across laps often point to inconsistency in the earlier phases.

Apex mode describes the shape of a corner in terms of how many distinct apex points it has and how they relate to each other. The three modes are:

Single apex: The most common type. One smooth arc with one closest point to the inside. Most corners on most tracks are single-apex turns.

Double apex: A longer corner with two distinct inside points separated by a brief straightening or opening of the line. Common in long sweeping turns. You effectively ride two mini-corners within one turn, with a short transition between them.

Opposite apex: A complex of two turns in opposite directions — for example, a left-right chicane. Each turn has its own apex, but the line through the first turn must set up the second. Opposite-apex complexes require compromise lines where you sacrifice performance in one turn to gain it in the next.

In LapBrain, the apex mode is shown for each turn in the track overview. Understanding the apex mode helps you interpret coaching recommendations, since the optimal technique differs for each mode.

Braking distance is the arc distance — measured along the track surface, not a straight line — from where you first apply the brakes to the apex of the corner. It captures how much track you use to slow down.

A shorter braking distance means you are braking later, carrying more speed on the straight, and committing to a harder stop before the turn. A longer braking distance can mean early braking (leaving time on the table on the straight) or gentle braking over a longer zone (sometimes appropriate for fast sweepers).

In LapBrain, braking distance is shown in the turn metrics panel as an average across visible laps, with the best (shortest) value highlighted. A large gap between your average and best braking distance suggests inconsistency in your braking point — focus on picking a consistent reference marker.

The apex-to-min-speed distance measures how far your minimum speed point is from the geometric apex of the corner. It is one of the most telling metrics for corner technique.

A value near zero means your slowest point coincides with the apex — the classic textbook technique. A negative value means you reach minimum speed before the apex, which often indicates releasing the brakes too early or over-slowing on entry. A positive value means your minimum speed is past the apex, which usually indicates trail braking — carrying brake pressure deeper into the corner.

In LapBrain, this metric is colour-coded: green for positive values (trail braking), neutral for near-zero, and orange for negative values (early minimum speed). Working toward a slightly positive apex-to-min-speed distance is a good progression target for intermediate riders.

Turn length is the total distance of a corner, measured as an arc along the track surface from the entry point to the exit point. Longer turns require more patience and a different approach than short, sharp corners.

Short turns (under 50 meters) tend to reward aggressive braking and quick direction changes. Long turns (over 150 meters) reward smooth inputs, patience through the maintenance phase, and careful throttle application. Understanding turn length helps you calibrate expectations for maintenance time and exit drive — a long sweeper with extended maintenance is normal, not a sign of poor technique.

In LapBrain, turn length is shown in the Turn Info section of the corner metrics panel when track geometry data is available.

Elevation change is the difference in altitude between the entry and exit of a corner. A positive value means the corner goes uphill; a negative value means downhill.

Elevation matters because it changes the physics of the corner. Downhill corners compress the suspension and load the front tire on entry, making trail braking easier but making it harder to judge braking distance visually. Uphill corners lighten the front end and can reduce front-tire grip on entry, but they naturally slow the bike and make late braking more forgiving.

In LapBrain, elevation change is shown in the Turn Info section when altitude data is available from the GPS trace. Use it to understand why certain corners feel different — a corner that feels sketchy on entry may simply be downhill, which changes the grip balance rather than indicating a technique problem.

Your personal best (PB) is your fastest recorded lap time at a particular track. It represents your current peak performance — the one lap where everything came together. Personal bests persist across sessions, so your PB from three months ago still counts until you beat it.

Personal bests matter because they give you a concrete, achievable target. Your PB proves you are capable of that speed — you have done it before. When coaching compares your current laps to your PB, it is comparing you to yourself at your best, not to some theoretical ideal. This makes PB comparisons especially useful: every difference between your current lap and your PB is time you have already demonstrated you can recover.

A PB should not be confused with a best lap (fastest in a single session) or an ideal lap (a theoretical composite). Your PB is real — you actually rode that lap. It changes only when you go faster.

In LapBrain, your personal best is shown prominently in session summaries and is the primary reference for delta comparisons and pace percentile calculations. When you set a new PB, the app highlights it as a milestone in your progress.

Your best lap is the fastest lap you recorded in a particular session. It is the reference point for that session — other laps are compared against it to understand where you gained or lost time. If your best lap in a session also beats your personal best, it becomes your new PB.

In LapBrain, the best lap is highlighted in the lap list and used as the default comparison target when analyzing other laps in the same session. The turn-by-turn breakdown of your best lap shows what you did right in each corner on your fastest pass.

An ideal lap is a composite — it takes your fastest time through each sector or turn from any lap in the session and adds them up. The result is a theoretical lap time that represents what you could achieve if you rode every section of the track as well as your best attempt at each section. You never actually rode this lap, but each piece of it is real.

The gap between your best lap and your ideal lap reveals consistency. If your best lap is 1:42.0 and your ideal lap is 1:40.5, it means you have 1.5 seconds of potential locked up in inconsistency — you know how to ride each section fast enough, you just have not done it all on the same lap yet. This is a very actionable insight: the speed is already in you, you just need to connect the dots.

In LapBrain, the ideal lap is shown alongside your best lap and personal best. The sector-by-sector breakdown shows exactly which sectors your best lap fell short of your ideal, giving you specific targets for your next session.

An on-pace lap is a lap that falls within a reasonable range of your best pace in the session — close enough to represent genuine riding rather than a cool-down lap, a warm-up lap, or a lap with a mistake or traffic. On-pace laps are the laps that matter for analysis, because they reflect what you are actually doing when you are trying.

Filtering for on-pace laps is important because a typical session includes many laps that are not representative: the out-lap as you leave pit lane, the cool-down lap at the end of a stint, laps where you encountered slower riders, or laps where you went off line. Including these in your analysis would distort your averages and make coaching recommendations less useful.

In LapBrain, on-pace laps are automatically identified and used as the basis for consistency analysis, coaching recommendations, and pace percentile calculations. You can see which laps were considered on-pace in the session lap list. The threshold adapts to your session — it is based on your actual pace distribution, not a fixed cutoff.

Delta is the time difference between two laps, typically expressed as seconds gained or lost relative to a reference lap. A delta of -0.5s means you were half a second faster; a delta of +1.2s means you were 1.2 seconds slower. Deltas can be calculated for the full lap or broken down by sector or turn.

Delta is the most fundamental tool for understanding where time is gained and lost. A full-lap delta tells you how two laps compare overall, but a sector delta or turn delta tells you exactly where the difference came from. If your lap was 0.8 seconds slower than your best, and the sector deltas show +0.9s in Sector 2 and -0.1s in Sector 3, you know the entire deficit came from one part of the track.

Turn-level deltas are even more specific. If your Sector 2 delta is +0.9s and it contains three turns, the turn deltas might show +0.6s in T5, +0.2s in T6, and +0.1s in T7 — telling you that T5 is where the real problem is.

In LapBrain, deltas are shown at the lap, sector, and turn level. Color coding makes it easy to see at a glance where you gained (green) or lost (red) time relative to your reference lap.

Pace percentile is a score from 0 to 100 that shows where a particular lap or turn falls within your own range of performance. A pace percentile of 95 means that lap or turn was in the top 5% of your own attempts — very close to your best. A pace percentile of 40 means it was below your own average.

The key thing about pace percentile is that it compares you to yourself, not to anyone else. A beginner rider and an expert rider can both have a lap at the 90th percentile — it just means each rider was riding near their own personal best on that lap. This makes pace percentile a fair, motivating metric at any skill level.

Pace percentile is especially useful for identifying consistency patterns. If most of your laps cluster between the 70th and 90th percentile, you are riding consistently. If they are scattered from the 20th to the 95th, you have high variability — which usually means there are specific corners where you are inconsistent.

In LapBrain, pace percentile is shown for each lap and can be broken down by turn. It is the primary metric used to assess consistency and to identify which turns have the most variation in your performance.

Consistency measures how repeatable your riding is from lap to lap. A consistent rider posts similar times through the same corners on every lap. An inconsistent rider has wide swings — a great T5 followed by a poor T5 followed by an average T5. Consistency is often more important than raw speed for improving lap times, because you cannot build on a technique you cannot repeat.

The reason consistency matters so much is that improvement requires a stable baseline. If your corner entry speed varies by 15 km/h from lap to lap, you cannot meaningfully work on carrying more roll speed — the variation drowns out any progress. But if your entry speed is within 3 km/h every lap, even a 2 km/h improvement is visible and sustainable.

Consistency also reveals where your attention is and where it is not. Most riders are very consistent in corners they are comfortable with and highly variable in corners that challenge them. The inconsistent corners are where the biggest gains live.

In LapBrain, consistency is measured at both the lap level (how tight is your lap time distribution) and the turn level (how repeatable is each corner). The coaching system prioritizes inconsistent turns because they represent the easiest path to faster, more reliable lap times.

A coaching thread is a focused area of improvement that LapBrain identifies from your data. Rather than overwhelming you with dozens of observations, the coaching system groups related findings into threads — coherent topics you can work on. A thread might be "trail braking in T5," "over-braking into the back straight chicane," or "consistency through Sector 2."

Each coaching thread contains the evidence (what the data shows), the recommendation (what to try), and the expected impact (how much time it could be worth). Threads are prioritized by potential time gain, so the most impactful improvement is always at the top.

Coaching threads persist across sessions when you return to the same track. If you were working on "trail braking in T5" last month and return to that track, LapBrain shows your progress on that thread — whether the issue has improved, stayed the same, or gotten worse. This continuity is important because real riding improvement happens across sessions, not within a single day.

In LapBrain, coaching threads appear in the coaching section of your session analysis. Each thread links to the specific turns and laps that illustrate the finding, so you can see the evidence and understand exactly what the data is telling you.

Focus recommendations are the coaching areas LapBrain suggests you work on next. Out of all the issues identified in your data, they are ranked by the best combination of potential time gain and achievability at your current skill level. They answer the question every rider asks after a session: "What should I focus on next time?"

LapBrain shows multiple focus recommendations rather than just one. The top item is the highest-impact change, but riders told us a single focus wasn't always enough — sometimes two or three issues are related (e.g. braking and entry speed in the same corner) and working on them together makes more sense. Each recommendation is specific — "carry 3 more km/h of roll speed through T7" rather than "go faster" — giving you something concrete to work on.

Focus recommendations evolve as you improve. Once you make progress on your current focuses, new recommendations surface. This creates a natural progression path through your available improvements.

In LapBrain, focus recommendations are shown prominently in the debrief, ranked by impact. Each includes the specific corners involved, the evidence from your data, a clear description of what to try, and an estimate of the time gain if successful.

A skill band is a classification of where you currently sit in your own development at a particular track. It is not a ranking against other riders — it is an assessment of your current stage of learning, used to tailor how coaching communicates with you.

Skill bands matter because the right advice depends on where you are. A rider in the early stages benefits from foundational guidance: consistent braking points, smooth inputs, basic trail braking. A rider at an advanced stage needs more nuanced feedback: apex timing variations, phase-specific speed optimization, consistency under fatigue. Giving advanced advice to a developing rider is confusing; giving beginner advice to an advanced rider is patronizing.

Your skill band can differ by track. You might be well-developed at your home track where you have hundreds of laps, and still developing at a track you just visited for the first time. This is normal and expected.

In LapBrain, your skill band influences the language and specificity of coaching recommendations. As your skill band progresses, the coaching becomes more detailed and the metrics shown become more granular. You do not need to worry about selecting or managing your skill band — it is determined automatically from your data.

A session is one continuous recording from your data logger, typically covering a single on-track stint from when you leave pit lane to when you return. A typical track day might produce 4-6 sessions, one for each stint. Each session contains all the laps you rode during that stint.

In LapBrain, a session is the primary unit of organization. When you upload data, each recording becomes a session. Sessions contain your laps, coaching analysis, and turn-by-turn data. You can compare laps within a session or compare sessions against each other to track progress across a day or season.

Sessions are categorized by their purpose. Practice sessions are for learning the track, testing setup changes, and working on technique. Qualifying sessions focus on producing the fastest single lap for grid position. Race sessions are full competition runs where consistency and racecraft matter as much as raw speed.

In LapBrain, the session type helps tailor the analysis. Practice sessions emphasize learning and consistency trends. Qualifying sessions highlight your single fastest lap and what made it work. Race sessions focus on pace management and performance over the full race distance.

Cross-session comparison means looking at your data across multiple sessions — typically across a full track day, a multi-day event, or over a season — to understand how your riding is evolving. Single-session analysis shows what happened in one stint; cross-session comparison shows the trajectory of your improvement.

In LapBrain, cross-session comparisons reveal trends like improving consistency, progressively later braking points, or increasing roll speed in specific corners. This longer-term view is where the real value of data-driven coaching emerges — not just what happened today, but how today compares to last month.

A day review aggregates all your sessions from a single track day into one summary. It shows how your pace evolved through the day, which corners improved the most, and what coaching threads were most relevant. It is the answer to the end-of-day question: "How did today go?"

In LapBrain, the day review appears when you have multiple sessions from the same day at the same track. It highlights your best lap of the day, shows session-to-session progression, and surfaces the coaching focus for your next visit.

An event review aggregates all sessions from a multi-day event — such as a race weekend with practice, qualifying, and race sessions across two or three days. It shows your progression from first practice to race, highlighting where the biggest improvements came and what to work on for the next event.

In LapBrain, the event review pulls together day reviews into a broader narrative of your event performance.

A track briefing is a summary of a track's characteristics — its layout, key corners, sectors, and any notable features like elevation changes or blind crests. It is designed to help you prepare before you arrive at the track or before your first session of the day.

In LapBrain, the track briefing shows the track map with turn designations, sector boundaries, and notes about each section. If you have previous data at this track, the briefing also includes your personal history: best times, areas of strength, and coaching focus areas from past visits.

A data logger is the hardware that captures telemetry data from your motorcycle while you ride. It records information like GPS position, speed, lean angle, throttle position, brake pressure, RPM, and other channels depending on the logger and sensors installed. The logger stores this data to internal memory or a memory card, which you later download for analysis.

Common data loggers used in motorcycle track riding include AiM systems (such as the AiM Solo 2 or MyChron), MoTeC units, and smartphone-based solutions like RaceChrono. Each logger records data in its own format, but they all capture the fundamental channels needed for lap analysis.

In LapBrain, you upload your data logger files and the system decodes them into a common format for analysis. LapBrain supports multiple logger brands and formats, so you can use whichever hardware suits your needs and budget.

A telemetry channel is a single data stream recorded by your data logger. Each channel captures one measurement over time — for example, speed, throttle position, lean angle, brake pressure, RPM, or coolant temperature. A typical logger records 10-30 channels simultaneously, sampling each one many times per second.

Channels are the raw ingredients of all analysis. Turn phases are identified from speed and position channels. Trail braking is detected from the overlap of brake pressure and lean angle channels. Throttle chops come from the throttle position channel. The more channels your logger records, the more detailed the analysis can be.

In LapBrain, available channels depend on your data logger and sensor setup. GPS-based speed and position are available from virtually all loggers. Channels like brake pressure and throttle position require additional sensors but unlock much deeper coaching insights.

A GPS trace is the recorded path of your motorcycle around the track, captured by the GPS receiver in your data logger. It records your latitude and longitude many times per second, creating a detailed map of your actual line through every corner. GPS traces are the foundation for position-based analysis — knowing where on track each data point was recorded.

In LapBrain, the GPS trace is used to map your data onto the track layout, identify turn boundaries, calculate racing lines, and compare lines between laps. The track map view shows your GPS trace overlaid on the track, color coded by speed or other metrics.

AiM, MoTeC, and RaceChrono are three of the most common data logging systems used by motorcycle track riders.

AiM makes dedicated data logging hardware popular in club racing and track days, including the Solo 2 (a standalone GPS lap timer) and MyChron series. AiM loggers record to XRK/XRZ format files.

MoTeC is a professional-grade data logging and engine management company. Their loggers are common in professional racing and record to LD/LDX format files. MoTeC systems typically offer more channels and higher sample rates than consumer units.

RaceChrono is a smartphone-based data logging app that uses the phone's GPS (or an external GPS receiver) to record lap data. It is the most accessible entry point for data logging, since it requires no additional hardware beyond a phone mount. RaceChrono exports data in CSV or VBO formats.

LapBrain supports data from all three systems, as well as other common logger formats. You can use whichever system fits your needs and switch between them freely.