수리 사례

2026. 6. 30. 작업

증상

Bent front fork on a bike

처리 내용

Fork Straightening Process The slider and internal oil valving are removed. The stanchion (inner fork tube) is placed on v-blocks A dial indicator is used to detect deflection as the stanchion is rotated Once deflection is understood a hydraulic press is used to bend the stanchion back to its original state. The process of measurement and bending with the press is repeated until a minimum amount of deflection can be detected Risk The stanchion has been repeatedly straitened has undergone enough stress cycles as to degrade the integrity of the tube. This, obviously, is undesirable. This can be detected by lubricating the tube slightly and running your hand up and down the tube to detect anomolies in the surface. Any surface anomolies on the stanchion will result in ongoing fork seal issues. As the fork seal passes by the surface anomoly it will quickly degrade the seal or allow oil to pass by resulting in oil leaks that can effect the brake rotor or tire surface which, in both cases, co