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Those numbers represent a distance measurement that helps BMX racer's decide on what gearing to run at a given track. Don't mistake that for the distance you travel in one pedal revolution though, as that's not what that number actually represents.
It doesn't necessarily mean that the rider will be leading into the first corner - but they often do. Basically, the term holeshot is used to refer to who gets the best start in a race. The term 'lip' refers to the 'sharpness' of the top of a jump. If a jump has a sharp lip, it does not gradually curve from its up-face, to the top surface of the jump.
Think of the lip of a jump is like the base of a ski-jump where it kicks upward to help the skier fly through the air. Sometimes BMX jumps contain a very steep section right at the tip of the jump to help riders reach the height they need to jump the obstacle.
If you are not a jumper, obstacles with lips can be difficult to ride as they are designed to help you lift off the ground.
Staying on the ground on 'lippy' jumps can be tricky to achieve if you ride them at speed. The term "manual" refers to riding along on your bike on the rear wheel only without pedalling.
Think of it as pulling a 'wheelie' without pedalling. In racing terms, this technique is normally used to gain speed through smaller rhythm sections or "doubles" and is not something that is done over a long distance - it's normally used only momentarily - to gain speed. When a rider "over-jumps" an obstacle, what that means is that he or she has jumped too far and missed the 'backside' of the jump. Sometimes an over jump can be only a matter of inches - sometimes you can miss the entire backside and have what we call a "flat-land" see above.
The term 'pre-lift' refers to a technique used by some riders whereby they lift the front wheel of their bike up onto an obstacle rather than ride up it in a normal manner. Pre-lifting enables the rider to gain more speed as they crest the top of an obstacle.
A pre-lift normally goes hand-in-hand with a 'pump'. In other words, a rider will pre-lift up onto an obstacle, then pump off the back-side of the obstacle in one fluid movement. When done correctly, this technique provides a good boost in speed. A pro-section is an alternative section of a BMX track that is dedicated to 'elite' riders. As part of a competition, elite riders must ride pro-sections unless conditions or other circumstances dictate otherwise strong winds can be a problem at times as can wet weather.
The most extreme pro-sections can involve jumping from the inside to the outside of one of the corners on the track essentially jumping the entire width of the 'non-elite' track. The term "pumping" refers to a technique used in racing to gain speed over bumps and jumps. Simply put, when you're going downward, you push the bike 'down' into the ground - when you're going up, you maximise your body position to be able to push down really hard when you start going down.
It's a little hard to explain, but we'll hopefully have some videos on the matter soon. A rhythm section on a BMX track is a part of the track consisting of several bumps and obstacles placed together in a tight grouping. Normally one full straight of a track is dedicated to a rhythm section. Often but not always the rhythm section of a track is the last straight before the finish line. The term "roller" refers to a single bump that is not too steep or sharp and can be ridden over at speed without being flung into the air too aggressively.
Roller style bumps don't tend to have 'lips' on them see 'lip' above. The term 'spin' refers to pedalling fast. There is an old saying in BMX racing, "spinners are winners", meaning that if you have the ability to pedal at a fast rate, you may be more likely to win a race.
Often riders will set the gear ratios of their bikes to ensure that they pedal at their most comfortable 'spin' rate. The start gate is the barrier that riders must be placed behind at the start of a race.
It is placed at the top of the start ramp and controls the start of a race by dropping or pivoting down out of the riders way. Riders generally balance against the gate in order to maximise their performance at the start of a race. You must ride in 4 of these each year to qualify to ride in the National Championships. Pits: The area behind the start line.
Riders are called to the pits before racing starts. They are then ready for the call-up. Sometimes called the call up area, or the assembly area. Plate: Each rider must have a number plate on their bike. This helps the announcer and the people in the points hut to know who you are. You are given your own number when you join the club. Each plate has the rider's club on it NAC for our club. Riders who have competed at the national championships in the previous year also have NZ on their plates and their number is their national ranking e.
NZ 5 ranked fifth at the nationals in their class. Points Hut: The shed near the finish line where riders line up after completing their race. Spaces are numbered and riders line up in finish order until their plate has been recorded.
Scooter: Ride over a series of bumps with your back wheel on the ground and your front wheel in the air. Shoot out: A series of races. Early races are mass starts and the slowest riders usually 2 or 3 each race are eliminated until only the fastest riders are left to compete in the final.
Triple: Three bumps close together. Some riders jump over the hollows in the middle, or scooter through them.
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