?s about steering wobbles

Seeing some of the wrecks in the video sections brings up some questions..I have gotten a couple of slight wobbles, nothing crazy..but 1)what are the physics behind a wobble starting? Does it occurr because the front wheel can't rotate fast enough to keep up with the bike? 2)how do you correct for a wobble? more throttle? less throttle? any steering inputs, weight changes, etc.

I don't know the physics behind the wobble, but if you get a bad enough tank slapper, just let go of the handle bars (not in a turn) and grab under neath the tank. The bike WILL correct itself. If you are in a turn, then keep the throttle constant. If it's bad enough, SLOWLY can't stress that enough SLOWLY let the throttle shut. Hope this helps.

For a start lets call your wobble "headshake". Headshake is basically your front wheel becoming light ie barely touching the ground so there is only a limited amount of weight on the front wheel. This occurs mainly when accelerating hard from standstill and out of corners, but not always. As for the headshake itself, its caused by steering imputs received from both road surface and the person riding the bike. It can be reduced by several methods. Lowering the triple clamps on the forks thereby placing more wieght on the front wheel. Increasing the rear spring preload thereby limiting the amount of rear end squat. Fit a steering damper to slow the steering response down or a combination of the above. Also positioning on the bike can have a big influence on headshake ie get your weight forward. I personally like to accelerate out of headhsake situations due to the fact that the faster the bike is going the more stable it is due to gyroscopic forces generated by the wheels. I personally wouldn't recommend letting go of the bars and grabbing the tank... after all how do you control the bike, it leaves no options to brake, accelerate or steer out of any situation that may arise. Cheers

ya i agree with fezi. letting go of the handle bars seems a little crazy to me. ive always been told to accelerate out of a "headshake".

Just remember the "pump" your brakes after a tank-slapper/massive headshake. The force of the slapper will push the pistons back into the caliper and you will be surprised to find out you have no brakes as you are entering the corner.

I agree with champions #640. I have a 2002 R1 and I have had wobbles passing the 6th at 10 000 rpm. That was because i pulled on the handlebars. Now, I grip the tank with the knees, holding smoothly the handlebars : no wobbles. Cheers Coco