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Old 04-17-2008, 11:56 AM   #1
Waerloga
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Handlebar shake recovery.

This morning was going to work on the HOV lane...

This is on a Ninja 250 so I'm WOT and it still doesn't go past 75mph due to the wind in my face.

All of a sudden, my handlebars start to violently turn left and right. After about 2 seconds of that, me gripping the handlebars as hard as I can and letting off the gas, it recovers...

So why did that happen and how do you stop it when it happens again...?
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Old 04-17-2008, 12:03 PM   #2
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happens when the front wheel gets light.....WOT can cause that, even on the 250.

as for how to stop it.....you did EXACTLY what would cause it to get worse in most cases....if it happens again, let go of the handlebars until it recovers on its own. usually puttin a death grip on the bars only makes it worse.

glad you're okay.
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Old 04-17-2008, 12:15 PM   #3
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I have had it happen on the katana and accelerated to get out of the tank slapper; mine was caused by going over the marker lights on the road...
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Old 04-17-2008, 12:16 PM   #4
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Stop Shaking

Survival Reaction #2
Again, by survey of over 8000 riders, the overwhelming choice for
runner-up in the "unwanted riding conditions" class is: too tight on the
bars. The same triggers that cause roll-off/roll-on also fire up this
unconscious action. And yes, it is the sole* reason for the message your
arms and hands are sending home to you. The message is: Please send
oxygen, we are overworked and starving.
My first inclination* is to simply say, "relax on the bike", but,
because we're dealing with SR's, it's not that easy. If there was a way to
simply hot-wire (bypass) these reactions, I'd tell you, but there isn't. But we
can handle them, using education as our primary tool. So let's get smart
about holding on.

No one is strong enough to stop this from happening. In fact, if you
did stop it, the bike would instantly wobble violently and be totally
out of control. The good news is that if your bike is basically tight
(steering head bearings not excessively worn, forks and shock not sticking,
etc.) the head-shake stays up front and does not transfer to the rest of the
bike. The bad news is that these head shakes are transferred, back
through the rider, after SR #2 has kicked in.

Riding a dirt bike in deep sand offers a dazzling* example of this
principle*. Hold tight and the bike feels totally unstable and ready to crash;
loosen up and it goes straight, even though the front end is working backand-
forth. Riding over rain grooves cut in the highway can offer a milder
sample of the same principle.

The process of Head Shake
begins when the tire hits a
ripple and, along with the
suspension, compresses.
This throws the wheel
slightly off-center.

When the suspension and
tire release, the wheel is light
and flicks back toward a
centered position, but again,
slightly off-center.

Still off-center when it loads
again from the next ripple;
again it is flicked past its
centered position.

The cycle of flicking back
and forth repeats as the
front-end seeks to stabilize
through this automatic and
necessary self correcting
process.

Relaxed on the bars allows
the front-end shake to remain
in the front. Stiffening on
them, transfers it, through
your body, to the whole bike.
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Old 04-17-2008, 12:16 PM   #5
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Quote:
Originally Posted by houseofpain View Post
happens when the front wheel gets light.....WOT can cause that, even on the 250.

as for how to stop it.....you did EXACTLY what would cause it to get worse in most cases....if it happens again, let go of the handlebars until it recovers on its own. usually puttin a death grip on the bars only makes it worse.

glad you're okay.
+1 if in doubt throttle out of trouble
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Old 04-17-2008, 12:18 PM   #6
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Quote:
Originally Posted by Waerloga View Post
This morning was going to work on the HOV lane...

This is on a Ninja 250 so I'm WOT and it still doesn't go past 75mph due to the wind in my face.

All of a sudden, my handlebars start to violently turn left and right. After about 2 seconds of that, me gripping the handlebars as hard as I can and letting off the gas, it recovers...

So why did that happen and how do you stop it when it happens again...?
Get your hands on a Copy of A TWIST OF THE WRIST VOLUME II

I can E-mail a copy 2 you if you PM me
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Quote:
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Busa club. why did you not mention that? that makes things all nice and peachy
Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength-
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Old 04-17-2008, 12:21 PM   #7
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Question

Quote:
Originally Posted by BigComfy View Post
+1 if in doubt throttle out of trouble
why not just "relax on the bike" let the bike straighten itself out?
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Quote:
Originally Posted by melissa claire View Post
Busa club. why did you not mention that? that makes things all nice and peachy
Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength-
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Old 04-17-2008, 12:23 PM   #8
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Quote:
Originally Posted by NoFear View Post
why not just "relax on the bike" let the bike straighten itself out?
Never said not to relax. Using the throttle will remove the "shaking" if you just sit there and relax w/o throttling you will be more likely to keep the head shake going and get tossed off.
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Old 04-17-2008, 12:29 PM   #9
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Quote:
Originally Posted by BigComfy View Post
Never said not to relax. Using the throttle will remove the "shaking" if you just sit there and relax w/o throttling you will be more likely to keep the head shake going and get tossed off.
My personal experience w shaking and have heard of friends getting tossed by trying to maintain or braking
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Old 04-17-2008, 01:18 PM   #10
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from my own personal experience, i let the handle bars go completely....took about 2-3 seconds to smooth out. it was scary as lettin go.....but it worked.
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Old 04-17-2008, 01:46 PM   #11
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Loosen your grip- sounds more like a pavement induced head shake versus a bike/ speed/ power induced shake like bigger bikes experience- but the actions on the rider's part should be the same.

Loosen your grip, the bike will straighten itself out- it "wants" to stay upright.
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Old 04-17-2008, 01:54 PM   #12
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Quote:
Originally Posted by tomLSTD View Post
Loosen your grip- sounds more like a pavement induced head shake versus a bike/ speed/ power induced shake like bigger bikes experience- but the actions on the rider's part should be the same.

Loosen your grip, the bike will straighten itself out- it "wants" to stay upright.
+1
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Old 04-17-2008, 03:08 PM   #13
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Ok thanks all. Either way it was pretty scary. Nowhere to lay it down either. Concrete on the left and right.
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Old 04-17-2008, 03:38 PM   #14
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Old 04-17-2008, 03:45 PM   #15
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, I haven't had that happen to me...I usually duck behind the windscreen on the tank...I guess this has kept me out of that predicament, but now I know what to do if it happens. You guys know if half price has twist of the wrist vol1 or 2?
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Old 04-17-2008, 03:51 PM   #16
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Quote:
Originally Posted by GQ* View Post
, I haven't had that happen to me...I usually duck behind the windscreen on the tank...I guess this has kept me out of that predicament, but now I know what to do if it happens. You guys know if half price has twist of the wrist vol1 or 2?
No clue if you PM me your e-mail I can send them 2 ya
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Busa club. why did you not mention that? that makes things all nice and peachy
Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength-
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Old 04-17-2008, 03:57 PM   #17
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Quote:
Originally Posted by houseofpain View Post
from my own personal experience, i let the handle bars go completely....took about 2-3 seconds to smooth out. it was scary as lettin go.....but it worked.
+ 1 thats exactly wat happen to me.... and thats exactly wat i did... just let go and it smoothed out on its own...
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Old 04-17-2008, 04:02 PM   #18
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Quote:
Originally Posted by GQ* View Post
, I haven't had that happen to me...I usually duck behind the windscreen on the tank...I guess this has kept me out of that predicament, but now I know what to do if it happens. You guys know if half price has twist of the wrist vol1 or 2?
Here you go

http://www.mediafire.com/?9mxmzfft2v4 twistofthewrist
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Quote:
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Busa club. why did you not mention that? that makes things all nice and peachy
Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength-
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Old 04-17-2008, 04:04 PM   #19
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twistofthewrist2.pdf


http://www.mediafire.com/?0m93zfytnxw
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Quote:
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Busa club. why did you not mention that? that makes things all nice and peachy
Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength-
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