Overview Similar Products –> Product Description WIRTH Fork Springs (Technical Component Report) Application: TT500’77-, XT250, XT500’77- (Fork oil SAE 10 Air cell 160mm) Progressive Front Fork Springs No more annoying and dangerous sagging of the fork Progressive spring rate, the fork reacts sensitively to small shocks without bottoming out under heavy loads Order suitable fork oil at the same time if necessary All fork springs with type approval Product Videos Custom Field Product Reviews