06/10/2026
A customer recently brought in a fork with a significant burr on the upper bushing. Not long ago, the only solution would have been complete bushing replacement (which we’re fully equipped to perform in-house).
Instead, we were able to restore and optimize the fork using our USA burnishing system.
The process not only removes burrs and high spots, but allows us to precisely size the bushings to an ideal low-friction clearance. With four progressively sized burnishing mandrels available, we can fine-tune each fork to achieve the best possible fit between the stanchions and lowers.
Unlike many burnishing tools, the Andreani system uses a guided rod that references both bushings simultaneously, ensuring they remain perfectly aligned, square, and true throughout the process. The result is smoother travel, reduced stiction, improved small-bump sensitivity, and elimination of binding caused by misaligned or undersized bushings.
It’s one of those services most riders never see, but it’s often the difference between a fork that feels good and one that feels exceptional. .labs
MountainBike BikeSuspension