NEWS STORE MAGAZINE CALENDAR FORUM
News you need to know history
driving techniques motor vehicles articles
results racers
videos photos wallpapers humor links
contacts
Authorization
Login:
Password:
Registration
"driving techniques" lessons of Gary Semix " Chapter 8.
Jumping [A look at simple, double and triple jumps, tables and sprints]
Chapter 8.
Jumping [A look at simple, double and triple jumps, tables and sprints]
Few people will argue with the fact that jumping on a motorcycle is one of the most exciting things in our life.
Indescribable sensations, as a rule, are the reason why racers prefer cross country and enduro to other types of motorsport and road riding.
As you will see, there are a lot of elements that can send you flying: from bumps on low speed sections to cliffs and jumps at maximum speed.
In addition, there are often combined elements - double and triple jumps, tables.
Jumping, however, requires a serious attitude, since it can severely punish the rider even for a minor mistake.
And that is why it is so important to always stay within your capabilities and suppress the desire to portray Superman.
When mastering jumps, it makes sense to experiment with different approaches.
Try landing on the front and rear wheels at low speeds; move on to serious jumps after you have a good idea of how the motorcycle will behave on a jump, when landing, depending on the type of terrain, in mud.
There are hundreds of thousands of components in motocross and enduro, and jumping is the most difficult element
The most important single point is the following: learn to jump on small jumps and move on to more serious ones only when you feel really confident.
Do not try to perform tables, double, triple, or any other combined jumps until you master the single jump.
Success in mastering jumps depends on several key factors, such as body position, coordination, gas and clutch control, motorcycle settings, realistic choice of a springboard.
Each jump should begin with a careful study of the springboard.
Inspect the track in front of the springboard for potholes, stones, dirt, ruts - anything that can interfere with you, your motorcycle, suspension.
Pay attention to the surface of the springboard: bulges that can knock you off balance, depressions that can make confusion in the suspension work.
Evaluate the area where you are going to land.
Finally, make a few circles around the springboard before the jump to think about everything again.
” Before jumping, it always makes sense to familiarize yourself with the existing conditions, "advises Jeremy McGraw," You should always imagine where you are going to land; otherwise, your chances of injury increase.”
After you analyze the springboard and make several circles around it, you should have an understanding of how and at what angle it will send you into the air.
With experience, such assessments will be given to you more and more easily.
Most jumps require repeated changes in body position to maintain balance.
That is why, as a rule, a standing position is preferred, the weight is concentrated in the center, the knees and elbows are bent, the gaze is directed forward.
This will allow you to make fast movements and cope more effectively with the arrival on the springboard.
Ideally, all movements aimed at changing the position of the body should be smooth.
And although speed is sometimes necessary, sudden movements can only aggravate the state of disequilibrium.
Throwing jumps
Be careful with such jumps, because of their nature they tend to send riders over the steering wheel.
In essence, these are low steep jumps and potholes that throw the rear wheel harder than the front one.
It is most preferable to approach such jumps standing, transferring weight to the rear wheel, at low or medium speed.
The harder you drive into such a springboard, the greater the tossing effect will be.
As soon as you come into contact with the springboard, accelerate along its entire length to keep the front wheel raised.
On the springboard, you should resist the rear suspension, not allowing your knees to relax.
If you try to take part of the shock with your knees, then the rebound will increase, your chances of flying through the steering wheel will increase.
But it is also important not to fix the position of the knees, they should be ready to move in case of a need to change the position of the body
Different approaches to landing
In normal jumps, when you land on a flat surface, you should touch the ground with both wheels at the same time.
But at high speeds, most riders prefer to land by holding the front wheel about 6 inches higher than the rear.
At the same time, the rear wheel will take most of the impact, while the front wheel will retain better handling.
If a turn immediately follows the springboard, then this is the basis for touching the ground with the front wheel at a low (safe) speed.
When landing on the front wheel, the rear wheel should be held about 6 inches higher than the front one.
When landing on the front wheel, which is used quite rarely, it is better to concentrate the weight on the back of the seat, and keep your hands away from the front brake.
This, combined with the correct position allowing the knees and elbows to take part of the impact, will reduce the likelihood of falling.
Landing on an incline usually requires a flat landing, when both wheels touch the surface at the same time.
When it comes to landing for a single jump, it is usually best to land on the rear wheel.
At all stages of the jump, the standing position allows the rider to control the position of the motorcycle by pushing or pulling the steering wheel; using the footrests as a support, move the weight forward or backward.
The photos will illustrate this.
Jump Basics
Low jumps are a good testing ground for studying the behavior of a motorcycle.
In this series of photos, Danny Carlson demonstrates the basics of jumping, bending his knees, keeping his foot on the brake pedal, raising his hands, bending his elbows, looking forward
After getting off the ground, Carlson uses his weight to maintain balance.
It pushes the steering wheel slightly away to prevent the front wheel from lifting up, and moves the weight back to avoid the tossing effect
Carlson will maintain this position until it needs to be corrected.
If the front wheel had lifted, he would have transferred his weight to the steering wheel.
Accordingly, if the front wheel suddenly dropped, Danny would pull the steering wheel towards himself.
And if a more drastic action was required, he would lock the rear brake to lower the front wheel, or open the gas to raise it
Landing, Carlson goes forward, absorbing part of the impact with his knees and elbows.
Landing on the gas reduces the shock and allows you to continue driving faster
Carlson keeps the throttle open to allow the engine to help the suspension absorb the shock, directing forward movement.
If he wanted to brake immediately, the suspension would go to the depths of the earth
“If you accidentally jumped out with the front wheel lowered, the position can be slightly corrected with the help of gas, "says Danny Carlson," The gyroscopic effect of the rear wheel can have a significant impact on the motorcycle.
Because of this, in order to lower the front wheel in the jump, some riders use the rear brake.
At the same time, you should squeeze out the clutch and throttle a couple of times, so as not to lose speed later.”  ”
When I land, I usually try to correlate the angle of inclination of the motorcycle with the angle of inclination of the surface; the exception is uneven areas where I land with the front wheel slightly higher than the rear to avoid twisting the front fork, "says Ron Lichin," If you land on an uneven surface with both wheels at the same time, the front wheel may bounce under the impact, you will lose pace.
But if you land on the rear wheel on the gas, the impact of the shock will be less."  ”
Except when you land on an ascent or unexpectedly encounter a double jump, do not keep the front wheel raised too high, “advises John Dod,”The higher it is raised, the harder it will fall when landing."
It is also very important to load both footrests equally, so as not to upset the balance.
Until you move on to advanced jumping techniques, you should keep the bike straight and not tilt it to the sides.
With an inclined position, the probability of wheels sliding when jumping out or landing increases, which can lead to a lot of unpleasant events.
If this happens in the air, then the situation can be corrected by loading the footrest, which is located above; this technique should be used only if necessary.
Tables
When you feel confident on single jumps, you can move on to practicing tables.
This element is similar to a double jump, but it is usually safer, since the sequence of jumps is less rigid.
We repeat that, while training, it is necessary to move from simple to complex.
After carefully studying the springboard and several laps around it, try to land on top of the table and get an idea of how the motorcycle behaves after the jump, and also estimate at what speed you need to jump to fly over the table and land on the descent.
Continue to land on the top of the table, each time jumping a little further (a step that you are sure of) until you get closer to the end of it.
You will notice this moment, because the suspension will throw you off the edge of the table and you will not have time to brake.
In most cases, you should land with the front wheel raised (about 6 inches higher than the rear).
This will provide you with maximum control over the motorcycle if you jump over (not jump over) an obstacle.
Ideally, if you have calculated the jump and see that you will land on the descent, push the steering wheel away from you to lower the front wheel (when you push the steering wheel, your weight shifts slightly forward, which also affects the position of the motorcycle).
Most riders prefer to keep the bike parallel to the surface during the flight and slowly lower the front wheel as the landing approaches.
In most cases, you should choose the angle of inclination of the motorcycle in accordance with the slope of the surface, which can provide you with a soft landing.
There is a principle that allows skiers to make jumps of more than a hundred meters.
And if a skier jumps from a height of 50 feet vertically down to a flat surface, the consequences can be very tragic.
However, when landing on an inclined surface, the energy absorption parameters are much better.
If you feel that you will land before the receiving part, you should touch the edge of the table with both wheels at the same time to maintain control of the motorcycle.
If you land on the front wheel, you will not be able to maintain good handling.
If you jump over the table, it is better to land in the same way, parallel to the surface and on the gas.
Jump lower
After you get used to the table, you can try to diversify your arsenal. ”
On the tables, I always try to jump as low as possible, "says Danny Carlson," When I realize that I have gained enough speed, I close the gas on the last two or three feet of the springboard and push the steering wheel away as soon as the front wheel leaves the ground.
I do this with a single movement, changing the position of the whole body.
The idea is to steer the bike forward, not up."
Double jumps
If there ever comes a time in your life when you feel the strength to perform this element, you should start the same way as on the table.
But keep in mind that here the consequences of not jumping can be much more serious.
If possible, practice a single jump, landing at the base of the second springboard (where this is even possible - it's up to you).
A single jump will again give you an idea of the required speed and possible trajectory.
Only when you are absolutely confident in yourself, you should try yourself on a double springboard.
"Double jumps require full concentration”" says Steve Lamson, " You need to give your best.
When you are in the air, there is no turning back."
If the calculation is correct, you should land on the descent behind the second springboard.
If you have doubts, it is usually safer to jump over than not to jump.
But in the end, all the envy depends on the landing site and the availability of space behind the springboard.
The case of jumping involves the same technique as the table, and not jumping is noticeably different.
If you land before the second springboard is placed on the lifting part, it is better to keep the front wheel raised.
The impact will be very strong, and this technique will allow the fork and the shock absorber to take it together.
If you fly over the springboard with one wheel, then it is better to keep the motorcycle parallel to the ground.
If in such a situation the front wheel is lower than the rear, there is a high probability that you will roll over.
And if the front wheel is raised, a powerful blow to the rear wheel may follow, which will lead to a lot of interesting consequences that you will not like.
“When you master double jumps, start with a simple one,” says Danny Carlson, “It is desirable to find such a springboard, the consequences of not jumping on which will not be fatal."
Double jumps
Double jumps are a frequently used element of modern trails.
The idea is to jump over the second springboard and land on its receiver.
Small jumps like this are the best place to develop your skills.
In this photo, Steve Lamson is approaching the jump at a speed just enough to cover the distance between the two jumps
In the previous photo, Lamson was in the center of the motorcycle, but note how he shifted back.
This is the result of pushing off the steering wheel, which was intended to lower the front wheel.
When the landing zone is on a slope, it is usually necessary to correlate the slope of the motorcycle with the angle of inclination of the surface
Before landing, Lamson once again changes the position of the body, returning the weight to the center.
Notice that he is standing in an attacking position
When both wheels touch the surface, Lamson absorbs some of the shock with his knees and elbows, but remains standing.
In this particular jump, the shock was not very large and did not significantly affect the suspension
Landing accuracy
Some double jumps require a jump height to a greater extent than others.
Usually jumps of this type have a short landing zone, which requires considerable accuracy, allowing you to avoid a powerful shock for the motorcycle and the rider.
The flight path from a high springboard is sometimes easier to assess, plus there is less chance of a strong impact of the front wheel when entering the springboard.
Taking off, John Dod allows the front wheel to rise higher than usual, moving back and slightly opening the gas
At this stage, the Dod feels that it is jumping far enough, and begins to lower the front wheel, shifting forward
In a split second, the Dod moves from the rear position forward.
Note that his knees are bent to absorb some of the shock when landing, and the wheels are approximately at the same level
If Dod had felt that he was landing before the receiver, then, probably, in order to prevent a fall, he would not have landed on the front wheel.
This double springboard is not high speed, however, if you do not jump to the receiving part, in most cases it will be better to land in accordance with the angle of inclination of the second springboard than to stick the front wheel into it.
Fortunately, Dod demonstrates a great jump and "comes in for a landing".
As you can see, the front wheel is lowered in accordance with the landing conditions on the descent
Triple jumps
Triple jumps require the same approach as double jumps.
Start by studying the springboard, then practice landing between the first two, double jump, jump over the first two jumps (if possible) until you feel that you are ready for a triple jump.
When you take it up, imagine that there is no middle springboard and there is a long double springboard in front of you.
Triple jumps
Such triple jumps are very impressive and very difficult.
Due to the height and speed of the jump, they are at the same time the most dangerous, requiring great skill and confidence.
In most cases, it is best to start the path to a triple springboard with the development of a single and double.
Only when you clearly master the double jumps and are sure that you can perform this element entirely, you should start thinking about it
For a successful jump of any type, a good approach to it is most important.
To perform this element, you need sufficient acceleration, which usually requires a straight section without potholes in front of the springboard
When entering the springboard, the suspension takes part of the impact, which can be seen when looking at the back of the motorcycle.
On takeoff, it is important to keep the speed, concentrate the weight in the center, keep the knees bent so that they can absorb some of the shock
To get the best result, Lamson accelerates throughout the entire lifting part of the springboard.
This will cause the front wheel to rise faster than the rear wheel.
To balance the position, Lamson pushes the steering wheel slightly; at the same time, his weight shifts backwards.
This allows you to maintain balance by taking the footrest as a support
In the air, it is best to stay a little relaxed, so that you can adjust the position of the motorcycle if necessary.
In most cases, it is not force that is required for control, but accuracy
Preparing for landing, Lamson begins to adjust the bike to the slope.
He pushes the steering wheel away again, shifting even further back
The front wheel drops steeply, and Lamson's ass is already touching the back of the seat.
It seems that Lamson is sitting, but in fact he continues to stand
A moment before landing, Lamson returns the body to the center position, allowing the bent knees and elbows to take part of the shock.
This springboard is followed by a turn, so Lamson is forced to brake
Double jumps on the rise
This is another type of double or triple jumps, where you need to adjust to a different angle of inclination.
In this situation, you should approach the second springboard step by step, and when you decide to double jump, correlate the angle of inclination of the motorcycle with the slope of the surface, which in most cases will be flat.
The general considerations for choosing the landing method are the same as for landing after a double or triple jump on the descent, but the penalty for not jumping will be more serious, since the pace is lost to a lesser extent on the descent.
If you hit the last springboard with one of the wheels, it will be extremely difficult to control the motorcycle after that.
Combined jumps
Some tracks offer combined jumps, such as this one.
Such jumps come in all kinds of shapes and sizes, and this particular one is an ascending series of waves before a double springboard
With such jumps, self confidence and coordination in time decide everything.
If Mike Craig had not landed in the right place, he could have received an unsuccessful suspension release and / or lost the pace necessary for a successful execution of a small double jump
Craig performed this series perfectly.
Note that the front wheel is about 6 inches higher than the rear one.
If he does not fly over the second springboard, he will be able to cope with the blow more effectively in this way.
In fact, Craig had sufficient speed and a little later changed the position of the motorcycle, bringing it in line with landing on the slope
Sprygi
Another jumping element is sprints.
In a standard situation, try to land with the front wheel 6-12 inches higher than the rear, which will allow the suspension to work in the best way.
As a rule, the surface in the landing zone is full of random potholes formed by riders landing on the gas.
Acceleration helps the suspension to take the push more effectively.
” Landing on the front wheel is good only in cases when the surface is flat, “says Lamson, " In most cases, landing on the front wheel is good.
oleso is used when it is necessary to switch to braking immediately after a jump, or when a turn follows immediately after landing on a slope after a double, triple springboard or table."
In the case when I have to jump blindly, Mike Healy expresses his thoughts: "When approaching the springboard, I canot see the landing zone, I try to navigate by indirect signs to be sure that I will land where it is necessary.
In most cases, you can trust the clearest tracks on the highway, but sometimes you have to keep in mind trees, rocks and other indirect landmarks.
Sprygi
Jumping off cliffs can be quite tricky, since the end result is usually associated with a hard landing.
Usually, before jumping, you should stand bent over, shifting back.
When the motorcycle is in the air, maintain control with your feet.
It is more reasonable to land with the front wheel raised, as this will provide better handling
John Dod allows his knees to cope with the effect of an unexpected failure.
Note that the front wheel is about 6 inches higher than the rear, and the body position is close to the attacker
A hard landing is softened with the help of knees and elbows.
As evidenced by the dust, the Dod is rigidly accelerated, which also softens the blow, directing the movement forward
Immediately after landing, the Dod accelerates to the next element of the track, standing in an attacking position
Sitting position
Although the standing position is the most commonly used when jumping, in some situations, the sitting position can be preferred.
It can provide additional lift during takeoff, but only if there are excellent conditions: a flat surface, no potholes when approaching the springboard, a smooth entrance to the springboard.
In this case, the jump will be higher and further, since your knees will not take part of the impact when entering the springboard, the suspension will work harder, followed by a faster recoil during takeoff.
Faster recoil is a key factor that significantly affects the height and range of the jump.
Regardless of the type of jump, it is important for you to know the characteristics of the engine well, so that the motorcycle does not throw out something unexpected.
If you are approaching a double or triple springboard on the rise, and the motorcycle can not develop the necessary speed, then it is worth knowing such things in advance.
” Keep your finger on the clutch all the time in case the engine loses momentum, "advises Lichin," If you land on a climb, or just lost momentum in a jump, it may make sense to switch the speed before landing."
Ultimately, the quality of jumps depends on the skill of the rider and on his ability to analyze the terrain, so your success is in your hands.
Techniques of Gary Semix
The role of jumping in motocross cannot be overestimated.
Supercross is all built on jumping and coordination, and the motocross tracks have changed, I borrowed some elements from there.
Today, to win, you need the ability to control a motorcycle both on the ground and in the air.
The key to controlling the jump lies on the take off.
Using the right techniques and practicing jumps until they become natural and without tension, you will be able to achieve complete control over your flying machine.
High Jumps #35
To jump higher and further, load the suspension right before the jump and help it unload during takeoff.
Be careful when practicing this technique.
Start with simple jumps and gradually move on to more complex ones when you are confident in yourself.
The most common mistake here is that the rider strains or freezes in the most crucial part of the jump, when the suspension is unloaded and the motorcycle lifts off the ground.
When the rider freezes, he gives himself up to inertia.
The correct way is to use your weight to increase the compression of the suspension a moment before it starts to unload.
Then you should help her in this, as if lifting your weight.
At the same time, choose the angle of the torso to control the motorcycle in the air.
Remember that the most important part of the jump is when the motorcycle leaves the ground.
What is happening at this moment?
Compression and unloading.
So rather than strain yourself, it's better to help the motorcycle with your movements.
This will add to your pleasant sensations and eliminate the need to change your pants too often.
Low Jumps #36
When you want to jump low and close, soften some of the compression and rebound with your body.
Allow the motorcycle to unload under you, slightly relaxing your elbows and knees.
Most novice racers do not know the difference between high distant and low close jumps, used if they want to quickly return to the ground and gain time.
They just jump the same way every time.
But there is a big difference between the techniques under consideration.
In this case, you should help the motorcycle absorb some of the compression and rebound with the help of body movements.
When jumping, you should take the motorcycle under you.
This way, you will be able to overcome the jumps and land faster and smoother.
Practice both techniques and you will notice a big difference.
Of course, do this on a safe springboard.
Control of a motorcycle in flight #37
In the jump, the squeezed clutch and the locked rear wheel will slightly lower the front wheel.
The open gas will raise it a little.
Although the most important part of the jump is taking off, you keep control of the motorcycle in flight.
As with takeoff, you should be relaxed in the air.
Donot be alarmist.
When the bike is in the air, you can clearly control its tilt with your body.
In addition, the clutch and gas allow you to use the gyroscopic effect.
You can lower the front of the motorcycle a little by squeezing the clutch and locking the rear wheel.
A sharp stop of the rotation of the rear wheel will lower the front part of the motorcycle.
The stronger the rotation, the more noticeable the result.
Opening the gas and sharply increasing the rotation of the rear wheel, you will raise the front one.
This is called panic unscrewing, because sticking the front wheel into the ground, you donot care how much noise you make, if you can save the situation.
Locking the front wheel is a bad idea.
Yes, your front will go down, but when you land, a stationary front wheel will cause trouble.
So, as you can see, the controls do not lose their meaning, even when the motorcycle is in the air.
The motorcycle is completely controlled in the air, and the key to controlled flight is a good jump
Jump Turn #38
When you are about to make a turn in the jump, tilt the motorcycle, turn and turn the rear end, taking off.
In flight, maintain your balance and align the motorcycle when landing.
You may have seen novice racers who tried to perform this element by simply turning the steering wheel.
When you want to jump out of the way, tune in to it at the entrance to the springboard.
The most important point is the take - off.
It is necessary to bend down, turn and continue the turn when taking off.
Then maintain balance by changing the position of the body, adjusting to the chosen trajectory.
If you have problems with the alignment of the motorcycle before landing, it is most likely that you do not maintain balance.
It is necessary to adjust in advance to a certain slope and turn.
This technique can be quite dangerous, so be careful.
Practice it step by step in conditions of a good safe takeoff and landing.
Although this element is more designed for the public, there is also a practical benefit from it.
You can prepare for a turn in the jump and land, having already started turning.
In addition, the element can prepare you for jumps of non standard shape.
It's not enough to drive on the ground right now.
You should still be able to fly.
Jumping
1.
Start with small jumps at a low speed
2.
Try to maintain an average position on the motorcycle
3.
Usually you should stand on the jump, in flight and on landing
4.
Change the body position in flight to control the motorcycle
5.
Help the suspension to take a blow with your knees and elbows
6.
On landing, open the gas to help the suspension
7.
Landing on the descent is usually easier for both the motorcycle and the rider
8.
Whenever possible, avoid landing with the brakes pressed out
9.
If you stay in the air for a long time, spin the engine so as to maintain the speed
10.
Jumping double, triple jumps or tables, aim to land in the receiving part
23 Dec 2002 02: 44
"driving techniques" lessons of Gary Semix " Chapter 8.
Jumping [A look at simple, double and triple jumps, tables and sprints]
MX magazines
Powered by DynacontCMS
© 2001-2006, MX+ info@mxplus.ru Live Fast Die Funny
