Seat bumping a jump: How? When? and Why?

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Yz426King

Member

Aug 18, 2001

66

0

• Dec 3, 2001

• #1

Can someone tell me how to do this, I am unsure even what it really is? :think Clear me up on this one, guys.:D

 

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yardpro

Gone Bye-Bye

Oct 15, 2001

529

0

• Dec 3, 2001

• #2

just before you hit the face of the jump you rapidly sit down far back on the bike. this preloads the suspension and gives you more spring off the face. you get more altitude and more distance. This technique is advanced and should be practiced on small low speed jumps. Make sure you are on the gas when seat bouncing or you could end up over the front of your bike.
hope that helps

 

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yzer67

Member

Dec 3, 2001

34

0

• Dec 3, 2001

• #3

I went to a mx school and they said u sit down in the sweet spot (central location) and feather the cluch(spelling) goin up the jump
hope this helps

 

Reeko

Member

Aug 9, 1999

67

0

• Dec 4, 2001

• #4

I saw an article from Kevin Windham on this. I also occaisonally use it...

Where you are sitting effects the attitude the bike will launch. The furthur back, the more you are preloading the Shock vs the forks, this will cause you to jump more nose down and MUST be compensated for with aggresive throttle on launch.

The more forward you sit the higher the nose will be, but you still need to be on the power to avoid nose diving.

Most of the time I sit very neutral and am on the throttle. If you are not accelerating you have a high probablilty of endoing. Use More throttle than you think you need at first, it is better to jump a little nose high, but it is surprising how much the back end kicks up.

This technique is used to clear jumps when you don't have much room to accerate, especially jumps right out of corners that you can't clear easily.

BEWARE: Do NOT seat jumps with small ramps. Make sure they are large enough that the entire bike (both ends are on the ramp at the same time. Small jumps will cause the rear to start compressing while the front has allready left the ramp. This will kick your rear way up, even when standing, sitting makes it worse.

 

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Yamamoto

Uhhh...

Apr 3, 2001

349

0

• Dec 6, 2001

• #5

Preloading

Never do it on a jump with a kicker.

 

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moto242

Member

Dec 3, 2001

46

0

• Dec 6, 2001

• #6

which unfortunatly is somewhere where you will probably have to use it

 

RM_guy

Moderator

Damn Yankees

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Nov 21, 2000

7,054

213

North East USA

• Dec 6, 2001

• #7

Re: Preloading

Originally posted by Yamamoto
Never do it on a jump with a kicker.

Click to expand...

:think
It would certainly take more skill to do it on a kicker jump but there's no reason why you couldn't. The seat bounce technique is used to give you more height to clear on obstacle when your speed isn't as fast as you might need.

Like anything, practice on the small stuff and work your way up to the more technical jumps only when you feel comfortable.

 

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Yamamoto

Uhhh...

Apr 3, 2001

349

0

• Dec 6, 2001

• #8

Re: Re: Preloading

Originally posted by RM_guy

:think
It would certainly take more skill to do it on a kicker jump but there's no reason why you couldn't. The seat bounce technique is used to give you more height to clear on obstacle when your speed isn't as fast as you might need.

.

Click to expand...

That is true (I do It) but at least untill they get use to preloading and throttle blips, I would reccomend they don't. Not only that if your sitting and the rear comes high You better have SKILL, and if they are just learning ...Hmmmm

Most of the worst endos I have seen were from Kickers and once sitting there is almost no way of bringing the rear down not even a panic rev will help you there.


Maybe we should start a thread about preloading and kickers that way we do not get anyone hurt.

At least standing on a kicker you legs soak up most of the KICK.

 

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roostinbe

Member

Mar 22, 2001

141

0

• Dec 6, 2001

• #9

On my supercross style practice track, there is a rhythem section, with like 5 jumps, and neumerous different secuences to jump them with. Several of them are kickers, The only real difference that I have found, is to be sure, and make it a smooth motion. Some people tend to think seat bouncing is kind of a jerky, sudden thing, but it is supposed to be smooth, allowing your suspension to work at it's full potential. On kickers, be sure, and apply more and more power as you get further up the face, then if your suspension is tuned right, you should have a nice smooth tragectory, just like you would on a normal jump. This technique is basically the way you would conquer a kicker, in normal position. It is just translated over to seat bounce position.

 

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Ricky

Member

Jan 12, 2000

98

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• Dec 6, 2001

• #10

I see a lot of references to "practice on small jumps". What do you guys consider small?

 

MikeT

~SPONSOR~

Jan 17, 2001

4,095

11

• Dec 7, 2001

• #11

I hadn't used this technique in a while and last year I was jumping a 60' table top (we measured it) and decided to use it. Well, lets just say I cleared all 60 feet and about 20 more.... I landed on the flat and almost couldn't stop it from going into the woods. When used correctly it's a great thing, when used incorrectly, you can jump off the track. :eek:

 

RM_guy

Moderator

Damn Yankees

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Nov 21, 2000

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North East USA

• Dec 7, 2001

• #12

Originally posted by Ricky
I see a lot of references to "practice on small jumps". What do you guys consider small?

Click to expand...

Small is in the eye of the beholder. Practice on a jump that is small enough so that if you mess up, you won’t crash hard. Don’t start out on a jump that you usually have problems with. Make sure the first practice jump doesn’t have a big kicker and start out hitting it slowly until you know how the bike is going to react. Also, stay away from doubles at first until you get better at the technique. Once you get comfortable with it begin practicing some of the techniques mentioned in the above posts. Keep in mind that the larger the kicker, the longer you have to hold the gas on to prevent the rear from kicking up too much.

Roostinbe’s comment about making it a smooth motion is very good advice.

Gradually work your way up to bigger jumps with bigger kickers. Just don’t ride over your head and practice, practice, practice.

 

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Yamamoto

Uhhh...

Apr 3, 2001

349

0

• Dec 7, 2001

• #13

Preloading

Originally posted by roostinbe
. Some people tend to think seat bouncing is kind of a jerky, sudden thing, but it is supposed to be smooth, allowing your suspension to work at it's full potential

Click to expand...

I think the term "seat BOUNCING" is what misleads those who do not know what "preloading" is

 

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roostinbe

Member

Mar 22, 2001

141

0

• Dec 9, 2001

• #14

I agree yamamoto. it can also be confused with preloading your suspension, while you are standing, which has a similar effect, just usually at a higher speed.