🏍️Glossary

Terms

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Apex Apex

The point on a corner's racing line closest to the inside kerb, usually also the point of lowest speed. A late apex, aimed behind the corner's geometric middle, is the standard choice: it costs a little entry speed but lets the rider stand the bike up sooner, load the tyre's wider central tread, and open the throttle earlier. Since exit speed carries down the whole following straight, that trade is almost always worth making.

Black Flag Black Flag

A signal ordering a specific rider to pit immediately, ending their race on the spot. It's shown with the rider's number for failing to serve a penalty, a serious rule breach, or a disqualifiable offence. A black flag with an orange disc means something different: it signals a dangerous mechanical fault, and the rider must leave the track as soon as possible.

Block Pass Block Pass

An overtaking move in a slow corner where the attacker brakes later than the defender, dives to the inside, and crosses the defender's line before the apex. It uses a tight, early apex that sacrifices the attacker's own exit speed but takes away the road the defender needs. It's effectively the standard attacking move in modern MotoGP, where straight-line speed alone rarely produces a pass, and its counter is the switchback.

Compound Compound

The rubber formulation of a tyre, or its softness rating. Michelin brings two slick compounds each weekend tailored to the circuit, with the soft option offering more grip but wearing faster and the hard the opposite. Riders are free to choose either compound for the Sprint or the Grand Prix, and it's standard to run the softer option in a 12-lap Sprint and the more durable one over a 24-lap Grand Prix.

Concessions Concessions

A tiered system that gives struggling manufacturers more development freedom. Since 2024, factories are graded A through D based on the percentage of available points actually scored across rolling assessment windows. Rank A comes with a frozen engine specification, a wildcard ban and restricted testing; Rank D allows ten engines, in-season engine development, six wildcards and unrestricted private testing. A manufacturer's rank can change up to twice a season.

Constructors' Championship Constructors' Championship

A separate title contested between manufacturers. Only each manufacturer's highest-finishing rider scores points in a given race, so sweeping the podium doesn't earn a factory double credit. Alongside it runs a teams' championship that adds together both riders' points from a single team, meaning a rider, a team and a constructor title are all on the line in the same season.

Dirty Air Dirty Air

The turbulent wake left behind a passing machine. A bike caught in it loses the front downforce its fairing and winglets were generating, so the front feels vague and pushes wide exactly where hard braking is needed on corner entry. At the same time, the warmed air raises the following bike's front tyre temperature and pressure. The aerodynamic rule changes coming in 2027 are aimed directly at reducing this effect.

Engine Braking Engine Braking

The deceleration the engine itself applies to the rear wheel when the throttle is closed. On a 1,000cc four-cylinder this force is large enough that, left unmanaged, it makes the rear hop or step out on corner entry. It's controlled through the spec ECU's engine braking maps and a slipper clutch, and this setting is tied directly to corner-entry stability, which is why riders sometimes shift settings mid-race as tyre condition changes.

Flag-to-Flag Flag-to-Flag

The procedure for swapping to a second machine, already fitted with different tyres, when track conditions change mid-race. It's permitted once the white flag is shown, and the swap costs roughly 25-30 seconds. Because MotoGP does not stop for rain, this system exists, and races are occasionally decided entirely by a rider's judgement of exactly when to come in.

Grand Prix Grand Prix

The official name for one round of the world championship, and also the term for Sunday's main race itself. Distance is around 110-120 km, roughly 40-45 minutes, with lap counts varying by circuit. The top 15 finishers score from 25 points down to one, and a rider must complete at least 75 percent of race distance to be classified. It's often called simply the main race in broadcasts, to distinguish it from Saturday's Sprint.

Grid Grid

The marked starting positions on the track surface and their overall arrangement. MotoGP uses a three-abreast, staggered layout, with Q2 setting positions 1 through 12 and Q1 filling 13th back. The same grid applies to both Saturday's Sprint and Sunday's Grand Prix, so a single qualifying session decides both of the weekend's races. Moving before the lights go out draws a double long lap penalty.

Highside Highside

A crash where the rear tyre slides and then suddenly regains grip, catapulting the bike and throwing the rider upward. Unlike a lowside, the rider is launched into the air before hitting the ground, so the impact is far harder and more likely to cause collarbone, wrist or spinal injury. Traction control has cut the frequency sharply, but it still happens on tyre-worn corner exits late in a race.

Holeshot Device Holeshot Device

A device that locks the suspension down just before the start to lower the centre of gravity. It stops the front from lifting off the line and significantly improves acceleration to the first corner; the name comes from motocross, where it describes being first into the opening turn. It appeared at Ducati around 2018, spread across the grid, and evolved into corner-exit ride-height devices, all of which are banned outright from 2027.

Lean Angle Lean Angle

How far a machine is tilted from vertical, expressed in degrees. Modern MotoGP riders regularly exceed 60 degrees and drag an elbow on the tarmac. The more a bike leans, the more the contact patch shifts onto the tyre's narrow edge, leaving less margin to brake and accelerate at the same time. That's why trail braking requires releasing brake pressure in exact proportion as lean angle builds; get that balance wrong and the front tucks.

Long Lap Penalty Long Lap Penalty

A sanction requiring a rider to take a marked detour around the outside of a designated corner. Introduced in 2019, it typically costs two to four seconds. It applies to most on-track offences, including repeated track-limits violations, causing a collision, or blocking the racing line in qualifying. Failing to serve it within a set number of laps escalates it to a ride-through or a time penalty, and jump starts and pit-lane speeding both draw a double long lap.

Lowside Lowside

A crash where the tyre loses grip and the machine slides down and inward, toward the inside of the corner. It usually happens when the front folds or the rear steps out sideways, and the rider slides along the ground with the bike, out toward the run-off. The impact is far milder than a highside, and many riders simply stand up right away. It's the most common type of crash in MotoGP and usually comes from carrying trail braking in too deep.

Moto2 Moto2

The middle class directly below MotoGP. Every team runs an identical 765cc Triumph inline-three engine and spec electronics, with only the chassis left open, which makes it a class where rider skill shows through more than machine differences. It runs alongside MotoGP and Moto3 at every Grand Prix weekend, and the standard path to the premier class is winning or finishing near the top here first.

Moto3 Moto3

The entry-level class of the Grand Prix world championship, run with 250cc single-cylinder four-stroke engines. Low power makes slipstreaming decisive, so it's common to see more than ten bikes riding as one pack until the result is decided on the final lap. The minimum age is 18, raised for the 2023 season after fatal accidents in junior racing. European and Asian junior series feed directly into this class as the bottom rung of the ladder.

Paddock Paddock

The area behind a circuit where team trucks, hospitality units and media facilities are gathered. The entire MotoGP paddock travels and is rebuilt at every round, and everything from rider-engineer meetings to contract negotiations happens here. Access is controlled by tiered passes, and spectators need a separate paddock pass or VIP programme to get in. The phrase transfer rumours are swirling in the paddock comes from exactly this place.

Pole Position Pole Position

The number-one grid spot, earned by the fastest qualifying time. In MotoGP it goes to whoever sets the quickest lap in Q2, and because the same grid is used for both Saturday's Sprint and Sunday's Grand Prix, a single pole delivers the starting advantage for both races at once. Its value rises on circuits with narrow corners and difficult overtaking, and a rider's career pole count is often cited as the clearest measure of single-lap speed.

Prototype Prototype

A one-off machine designed purely for racing, not a modified version of a bike you can buy. This is the fundamental line separating the MotoGP class from the production-based Superbike World Championship. Under the rules it can be up to 1,000cc, a maximum of four cylinders, an 81mm bore limit, over 300 horsepower and a minimum dry weight of 157 kg. None are sold to the public, and manufacturers reclaim them at season's end, mostly to dismantle or store.

Q1 and Q2 Qualifying Q1 and Q2 Qualifying

Two 15-minute qualifying sessions held on Saturday morning. The top ten from Friday's Practice go straight to Q2, while everyone else fights in Q1, with only the fastest two advancing. Q2 fills grid positions 1 through 12, and the remaining Q1 riders fill 13th back. Most riders use two soft rear tyres and put everything into a single flying lap, and this same grid is used for both the Sprint and the Grand Prix.

Red Flag Red Flag

A signal that immediately stops a race or session. It's shown when continuing is dangerous, for a major crash, debris on the track, or a sudden change in weather, and every rider must slow and return to the pits. If the race has passed two-thirds of its scheduled distance, the result is fixed at that point; if not, it restarts over the remaining distance. It's also the central tool for managing a race on a wet day.

Ride Height Device Ride Height Device

A device that compresses the suspension to lower ride height just before a corner exit or the start. Dropping the centre of gravity reduces the wheelie that would otherwise rob acceleration, gaining roughly a tenth of a second per corner exit for the same power. Ducati developed it first and it spread to every manufacturer, but front-mounted versions are banned from 2023 and all ride-height devices, including rear ones, are banned from 2027.

Satellite Team Satellite Team

A team that isn't a manufacturer's own factory squad but an independently run outfit supplied with machinery by a manufacturer. Some run the latest specification and some run a year-old one, so equipment gaps exist even within the same manufacturer's bikes. It's the standard route for young riders to get premier-class experience and a way for manufacturers to gather more data, and satellite-team wins have become far from rare in recent seasons.

Seamless Gearbox Seamless Gearbox

A transmission designed so the next gear engages before the current one disengages, so drive is never interrupted during a shift. Unlike a conventional gearbox, torque doesn't briefly cut out, which removes the fore-aft pitching that shifting under acceleration otherwise causes, and the bike stays settled even shifting while leaned over. Honda first raced it around 2011 and it spread to every manufacturer; it's considered one of the most expensive components to develop.

Slick Tyre Slick Tyre

A racing tyre for dry conditions with no tread grooves at all. The lack of grooves maximises contact area but leaves no way to clear water, so it can't be used on a wet track. Michelin supplies identical tyres to every rider, and a standard weekend allocation is 22 slicks and 13 wets. Full grip only comes once the tyre reaches its working temperature range, which is why tyre warmers are used beforehand, and the first lap on a cold tyre is the most dangerous.

Slipstream Slipstream

Tucking into the low-pressure pocket left by a machine ahead to reduce your own air resistance, also called a tow. On circuits with long straights like Mugello or Phillip Island it's worth several tenths of a second, which is why riders deliberately hunt a tow from a faster rider in qualifying, a practice that led to penalties for riding slowly on the racing line. The logic behind last-lap defending comes from exactly this effect.

Spec ECU Spec ECU

The identical Magneti Marelli control unit and unified software every entrant has been required to run since 2016. Traction control, anti-wheelie and engine braking maps all run inside it, and manufacturers can only differentiate through calibration, not the software itself. It's credited with narrowing the advantage manufacturers who had spent heavily on in-house electronics used to hold, and riders switch maps mid-race using handlebar switches.

Sprint Race Sprint Race

A shorter race introduced in 2023, held on Saturday afternoon over roughly half the Grand Prix distance, 10 to 14 laps in a little over 20 minutes. Points go only to the top nine, from 12 down to one, and the grid is set directly from that same morning's qualifying. There's no separate tyre requirement, so almost everyone runs a softer compound and goes flat out from the start, and the result has no effect on Sunday's grid.

Stint Stint

A stretch of laps run continuously on the same tyre. Since MotoGP has no pit stops, the entire race is effectively one stint, which turns pace into something that has to be budgeted rather than held constant. The opening laps go to bringing the tyre up to temperature, laps roughly three through eight to using peak grip, and the rest to conserving whatever grip remains. In practice sessions, the term refers to a continuous run used to check race pace.

Switchback Switchback

The standard counter to a block pass. A rider who's lost the inside doesn't fight for it back immediately; instead they take a wider entry, carry the corner around on a bigger arc, and dive back underneath as the attacker's exit slows due to their compromised line. Because exit speed carries the length of the following straight, a well-executed switchback usually retakes the place immediately, which is exactly why last-lap defence is built around locking up the inside line first.

Track Limits Track Limits

The rule, and the boundary itself, requiring part of the machine to stay in contact with the track surface. The boundary is defined by the outer edge of the kerb and the green-painted run-off beyond it. In practice and qualifying, exceeding it simply cancels that lap time; in the race, riders get a warning first and then a long lap penalty for repeat offences. Gaining a position by running wide on the final lap draws an immediate order to hand the place back, or a post-race demotion.

Traction Control Traction Control

Electronic control that cuts ignition or fuel when the rear wheel spins significantly faster than the front, to limit wheelspin. Within the spec ECU, the allowed amount of spin is set differently at each lean angle, and eliminating spin entirely doesn't actually make a bike faster, since a little spin helps rotate the bike out of the corner. As a tyre wears, riders shift to a more conservative map mid-race.

Trail Braking Trail Braking

A technique that carries decreasing front brake pressure into the corner rather than finishing all braking on the straight. It loads the front, compressing the fork and sharpening the steering geometry, which lets a rider turn a tighter radius at the same speed. Because the front tyre is handling braking and cornering forces at once, pressure has to be released in exact proportion to lean angle; get that balance wrong and the front tucks into a lowside.

Tyre Drop Tyre Drop

The point where a rear tyre's grip crosses its limit and performance collapses suddenly. Rather than fading gradually, lap times can fall away by half a second within just a couple of laps, and grip disappears first from the edge that takes the drive out of corners. From this point riders shorten time spent at full lean, stand the bike up earlier, and lean on electronics to control spin. Whoever conserved more in the early laps is the one who separates from the field here.

Tyre Pressure Rule Tyre Pressure Rule

The rule requiring the front tyre to stay at or above 1.80 bar for 60 percent of a Grand Prix and 30 percent of a Sprint. It's monitored by a sealed sensor, and a violation adds 16 seconds to a Grand Prix time and 8 seconds to a Sprint. Lower pressure gives more grip but risks overheating and failure, which is why the rule exists. Because riding closely behind another bike raises your own tyre's temperature and pressure, it factors directly into race tactics too.

Wheelie Wheelie

When the front wheel lifts off the ground under acceleration. It can look like a celebration, but in a race it's a clear loss, since the moment the front is airborne the rider can't open the throttle further or steer at all, and acceleration stalls. That's why the spec ECU's anti-wheelie control, aerodynamic downforce and ride-height devices have all been developed specifically to suppress it. A single wheelie on the last lap can be enough to change a finishing position.

Wild Card Wild Card

An entry by a rider or team outside the regular grid for a specific round only. It's usually a manufacturer fielding a test rider in race conditions to validate new parts, distinct from an injury-replacement entry. How many are allowed depends on concessions rank: top-tier Rank A manufacturers get no in-season wildcards at all, while Rank D can use up to six.

Winglet Winglet

An aerodynamic wing mounted at the front of the fairing to generate downforce. Ducati led the way in the mid-2010s and it spread to every manufacturer; today's fairings integrate the wings as a single shape. It loads the front tyre under braking and suppresses wheelies on corner exit, cutting lap times significantly, but it comes with the side effect of stripping front-end feel from any bike following behind. Aerodynamic specifications are homologated and can only be updated once per season.

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