Wilbers forkfedern for Yamaha XJ 550 81- onwards

Product Details

Wilbers forkfedern set, progressive, for Yamaha XJ 550, Type 4 V 8, model year 81- onwards (fork oil please order separately), with ABE according to the usage list.

General Description

Depending on the application, Wilbers offers progressive or linear forkfedern, made from the best and highest quality chrome-silicon steel. For touring and sport touring, we generally recommend progressive forkfedern to optimise response and, on the other hand, to increase bottoming resistance. The combination of the "Zero Friction" forkfedern with the specially developed Wilbers fork oil and observing the correct air gap for the correspondinge vehicle is very important. If desired, individual tuning can be achieved in special cases by changing the air gap.
For motorsport applications, we recommend the very light linear chrome-silicon forkfedern from Wilbers, which were co-developed by the motorsport team.

"ZERO friction" friction reduction through vibratory finishing:
During vibratory finishing, the componente to be processed, such as Wilbers forkfedern, are placed together with an abrasive media specially designed for this purpose in a vibrating container, known as a trough vibrator.
The vibrations of the container create relative movement between the workpiece and the abrasive media, leading to a smoothing of the componentupperfläche through constant rubbing. The result of the processing is a fine, shiny surface.
For Wilbers forkfedern, this reduction in surface roughness means a minimisation of friction = ZERO friction.

Each set of forkfedern includes a recommendation for the viscosity of the fork oil and the height of the air gap in the fork. These values have been determined by experienced Wilbers technicians and ensure optimal riding comfort and feedback at the front wheel.

Note: Please order the fork oil separately.