Post by honestjohn on Apr 10, 2009 7:21:57 GMT -5
Dampening and Suspension problems
Front Suspension Problems Possible Cures
Laden sag too great increase perload
Laden sag too small reduce perload
Forks dive too fast more compression damping
Forks dive too far (bottom) stiffer springs, less air gap, possibly more perload
Forks judder when braking in straight line less compression damping
Front wheel skips on bumps soften springs, reduce compression damping, larger air gap.
Always losing frount end on corner entry soften springs, check weight distribution.
Front end shakes, not chatters, in corners more rebound damping
Front end shoots up too fast after breaking more rebound damping
Front end chatters out of corners soften rebound springs or main springs, reduce compression damping
Forks compress too much on smooth turns stiffen springs, increse perload
Forks pump down on fast bumpy turns reduce rebound dampening
Excessive pogo action through chicanes small increase in rebound dampening
Bike difficult to turn in soften springs, less preload or compression dampening, alter steering.
Rear suspension problems Possible Cures
Laden sag too great increase perload
Laden sag too small reduce preload
Rear squats on acceleration stiffer springs, more anti-squat, increase compression damping slighty
Bike wallows increase preload damping
rear jacks up too fast on braking increase preload dampening
Rear end chatters leaving slow corners increase perload dampening
rear end pumps on bumpy corners reduce rebound dampening
Very harsh ride on ripples reduce compression dampening
Bike kicks off ripples, bounces on bumps increase rebound dampening
Front Suspension Problems Possible Cures
Laden sag too great increase perload
Laden sag too small reduce perload
Forks dive too fast more compression damping
Forks dive too far (bottom) stiffer springs, less air gap, possibly more perload
Forks judder when braking in straight line less compression damping
Front wheel skips on bumps soften springs, reduce compression damping, larger air gap.
Always losing frount end on corner entry soften springs, check weight distribution.
Front end shakes, not chatters, in corners more rebound damping
Front end shoots up too fast after breaking more rebound damping
Front end chatters out of corners soften rebound springs or main springs, reduce compression damping
Forks compress too much on smooth turns stiffen springs, increse perload
Forks pump down on fast bumpy turns reduce rebound dampening
Excessive pogo action through chicanes small increase in rebound dampening
Bike difficult to turn in soften springs, less preload or compression dampening, alter steering.
Rear suspension problems Possible Cures
Laden sag too great increase perload
Laden sag too small reduce preload
Rear squats on acceleration stiffer springs, more anti-squat, increase compression damping slighty
Bike wallows increase preload damping
rear jacks up too fast on braking increase preload dampening
Rear end chatters leaving slow corners increase perload dampening
rear end pumps on bumpy corners reduce rebound dampening
Very harsh ride on ripples reduce compression dampening
Bike kicks off ripples, bounces on bumps increase rebound dampening