Starting technique is very important in all competitions, especially in short distance events where it plays a decisive role in winning or losing.
There are two starting methods: supporting the car and not supporting the car. In velodrome races, a car-supported start is often used, while in road group races, a car-free start is used.
The method of starting with a car: before the competition, the athlete rides on the car, and the referee holds the back and bottom of the car seat, or holds the front fork tee with one hand and the back and bottom of the car seat with one hand. Maintain balance. Before starting, athletes should tighten the pedal straps, then hold on to the handlebars, take one or two deep breaths, and relax their waists. Sit firmly and keep the two pedals parallel to the ground, or the first pedal of the pedal is slightly higher. When you hear the referee's "Ready" command, your buttocks leave the seat promptly and smoothly, ready to start, but the movement Don't be too aggressive to prevent a false start foul. After hearing the starting gunshot, immediately push down quickly and forcefully with the first foot of the pedal, but not too hard to avoid excessive muscle tension and difficulty in passing the "dead spot"; use the leather strip and foot clip to push upward with the other foot. Lift the pedals and lift the toes slightly upward to prevent the toes from pulling off. When pedaling with your left foot, use your left hand to pull the handle into your arms, concentrating all your strength, and use your right hand to press down on the handlebar with the same force. Bend your arms, move your upper body forward, and use your entire body to form an arch. When cycling to the other foot, do the same movement but in the opposite direction. At the same time, raise your head slightly, pay attention to the balance of the car, and accelerate forward in a straight line. After starting at 60 to 80 meters and reaching a certain speed, the athlete can sit on the seat smoothly. Use the existing inertia to relax the pedaling a few times to adjust the muscle tension caused by starting, and then immediately switch to normal pedaling. It is important to point out here that when sitting down from a standing position, do not pull the handlebar backward to prevent the car from slowing down.
The method of starting without holding the bicycle is that before starting, the athlete holds the bicycle with both hands and rides on the frame, with one foot on the pedal and the other foot on the ground. When you hear the starting signal, push the ground hard to move the car forward, quickly sit on the seat, put on the leg gloves, and use the standing riding method to speed up. After starting, use the same technique as starting with the car.
1. Gully. When crossing ravines, keep the bike as level as possible. If it gets stuck in a ditch, it will cause a slight impact or serious damage to the bicycle. Small ditches can be jumped over, but if the ditch is wider, you need to find another way. If the width of the ditch is suitable, you can also ride across the bottom of the ditch. When the front wheel hits the edge of the ditch, first move the body's center of gravity backwards away from the front wheel, and then push the front wheel down into the ditch. When you reach the opposite slope, lift the front wheel and rush out of the ditch. When the body's center of gravity moves forward, continue pedaling. This technique is similar to that used for crossing larger rocks. However, what you need to do here is not to jump over the obstacle, but to rush out from the bottom of the ditch.
The V-shaped gully formed by running water is one of the more difficult terrains to deal with. This kind of groove is usually 50 cm wide and the deepest part is about 50 cm. The simplest way is just to carry the bicycle over the ditch. In addition, there are many methods. The best way to do this is to perform wheelies while crossing ravines. When the rear wheel hits the bottom of the ditch, the body's center of gravity moves slightly forward, and at the same time, continue pedaling until you rush out of the bottom of the ditch.
If the bicycle is stuck in a ditch and you need to find a place with a smaller slope to ride out, you can also jump out of the ditch sideways. However, if the ditch is too deep, slow down slowly and wait for the bike to stop before climbing out.
2.Sand. Sand is often intimidating to riders, but the techniques for handling this terrain are the same as for terrain filled with gravel and sand. When encountering this kind of terrain, the front wheel of the bicycle can easily get stuck in the sand, and it is difficult for the rider to control the direction of the bicycle. Ordinary cycling skills will not work here. The correct operation is as follows:
Approach the sand as fast as possible, aim at the target location, and shift the center of gravity back.
Pedal steadily and hard to maintain vehicle speed. When passing through relatively thick and soft sand, you should "skim" it gently like surfing on the sea. Tip: Don’t forget that areas traveled by other cyclists and motorcyclists are stronger and easier to ride on.
3. Cross the standing water. It can be very exciting to walk through standing water, but before doing so it is best to check the depth of the water to see if there are any rocks or deep holes in the water. Even if you know this terrain very well, this step cannot be omitted.
If you don’t know it, or you haven’t passed here for a long time, it’s best to slow down, or simply get off the car and walk there. To borrow the words of Albert, the famous downhill sports authority: "Since stagnant water and mud not only affect shifting and braking, but are also bad for bicycles, it is best to carry the bicycle and walk through the water. If the shoes are wet, it will also cause damage to the bicycle. Do it”. However, if you are confident that you can pass through safely, then feel free to rush over, but be sure to shift your body's center of gravity back.
4. Jump in place. The technique of gently jumping on a bicycle. The most basic skills of BMX. Twisting is also possible.
The technique is to bend your knees and wrists, focus on jumping on the feet, and bend your knees and wrists after landing to absorb the impact. The rotation action is: turn the handle in the direction to be rotated and twist the entire body.
5. Lift the front wheels. No pedaling, just moving your body weight to improve your front wheel skills. It is easy to lift the front wheel when jumping, but it is not easy to ride for a long time after lifting the front wheel. If the position of the grip is not adjusted well, it will be difficult to achieve balance, so the position of the grip must be adjusted. If the frame is larger, it is easier to lift the front wheel by tilting the handle towards the side. When the distance between the bottom bracket and the rear wheel is too long, it will be difficult to lift. In this case, try tightening a piece of chain, but be careful that if it is too tight, it will become too fast and difficult to control. When the grip is too long, narrowing it sometimes improves the lift.
The trick is to lightly hang your fingers on the rear brake. After quickly assisting you to walk, bend your arms while moving your weight forward. Instantly straighten your arms, move your weight backwards, and the front wheel will float. . At this time, the front foot feels like kicking forward, and the back foot feels like pushing down hard. Do not step on the front wheel when raising it. Do more exercises of "raising the front wheel until it is about to fall backward" (use your feet to prevent the body from falling backward).
After you are proficient in the above movements, practice lightly braking before falling to prevent falling.
After you are proficient in the above movements, do exercises that will prevent you from falling down without braking.
When you feel like falling backward, bend your wrist slightly and the front wheel will drop when your center of gravity moves forward. If you feel like you are falling forward, move your waist backward, extend your arms, and straighten your feet like you are kicking forward. If you feel like you are going to fall to the left, pull the handle on the left side toward you, and feel like you are pushing forward on the right side. The foot should push in the opposite direction of falling.
If you feel that you are about to stop, bend and straighten your knees to move forward until you can no longer move forward.
Always keep your feet and wrists slightly bent while performing this movement.
It is more stable when walking fast. Wear a helmet if you are afraid of falling backwards. If you can use the lines on the ground, you can know how far you have walked. Practice with friends to make progress faster.
6. Rotate. The technique of riding for a while (without using the brakes) by shifting your body weight and twisting your body to rotate → return to the original position. Although it is a common technique, it is used for tricks such as spinning 360° in the air.
If it cannot be rotated 180° perfectly, the spokes will be subject to a large lateral force, so the forks must be tightened. The air pressure should be high. The brakes are not used.
MTB's TRAIL also has similar actions. The characteristic of BMX is that it does not require brakes to control it. Because there are no brakes, the movement proceeds like flowing water. First, practice rotating with the front tire as the axis. Ride over at a speed slightly faster than walking, twist 45° in the direction of rotation, place your weight on the front, turn your neck in the direction of rotation, put your feet on the pedals, and twist in the direction of rotation. Look slightly ahead of the front tire. The above actions must be completed simultaneously and instantly. When you start practicing, you generally cannot rotate smoothly, maybe because you are too nervous. So start practicing with small spins; or make up your mind and spin in one breath without fear of falling.
After rotating 180° with the front wheel as the axis, it can continuously rotate 180° with the rear wheel as the axis. This action uses the inertial force of the 180° rotation with the front wheel as the axis. After completing the 180° rotation, place your weight leaning toward the front on the back in one breath, turn the handle to the side of rotation, twist your body, push your feet hard, and rotate in one breath. Notice! Before continuing to rotate forward and backward, you must master the technique of rotating 180°.
When turning the front wheel 180°, when to turn is important, so ride like a snake for a while to look for opportunities to turn. Sight is very important, otherwise it is easy to fall. If the assisted walking is fast and the operation fails, there is a greater chance of falling backwards. If you are not sure, do not force it. It's best to wear a helmet.
The technique of only improving the front wheel rotation by 180° is also the simplest technique. If you master this technique, it will be very useful when performing MiniRamp rotations. Furthermore, it is also the basis for performing rotation techniques such as BannyHop180°, BannyHoRockWalk, 360°, 540°, 720°, and 900°.
When adjusting the car, you need to rotate it, and the air pressure in the tires should be higher. If you are afraid of falling, you should adjust the rear brake.
The trick is to first practice 45° rotation, and then practice 180°. If you don't have a good fist to "lift the front wheel" technique, it will be difficult to perform this rotation, so practice the "lift the front wheel" operation first. With the pedals placed horizontally or with the front pedal slightly higher, walk at a speed (while stopping or not stopping). Use the front wheel and body weight to turn the handle in the direction you want to rotate, twist your entire body, and stretch your hands. Straight, the moment the buttocks are back, the center of gravity is placed on the rear, and the front is lifted using the method of "lifting the front wheel". Focus on the foot on the front foot, and rotate in one breath as if pushing forward. When rotating, the car is more stable when it is slightly tilted to the center of the rotation axis. When you think that it has turned 180°, the operation is over and the front wheel touches the ground. Keep practicing, using the energy of a 90° rotation to rotate 180°.