Wilbers fork springs for Yamaha XS 400 DOHC 82-

Product Details

Wilbers fork spring set, progressive, for Yamaha XS 400 DOHC, Type 12 E, model year 82- (fork oil must be ordered separately), with ABE according to the application list.

General Description

Depending on the application, Wilbers offers progressive or linear fork springs, manufactured from the best and highest quality chrome-silicon steel. For touring and sport touring, we generally recommend a progressive fork spring to optimise responsiveness and, on the other hand, increase bottoming-out reserves. Crucial is the combination of 'Zero Friction' fork springs with the specially developed Wilbers fork oil, as well as observing the correct air chamber for the corresponding vehicle. If desired, in special cases, individual tuning can be achieved by changing the air chamber.
For motorsport applications, we recommend the very light linear chrome-silicon fork springs from Wilbers, which were co-developed with the motorsport team.

"ZERO friction" friction reduction through slide grinding:
During slide grinding, the component to be processed, such as Wilbers fork springs, are placed together with an abrasive body specially adapted for this purpose in a vibrating container, known as a trough vibrator.
The vibrations of the container generate relative movement between the workpiece and the abrasive body, and through constant rubbing, lead to a smoothing of the componentupper surface. At the end of the process, a fine, shiny surface is achieved.
For Wilbers fork springs, this reduction in surface roughness means a minimisation of friction = ZERO friction.

Each fork spring set includes a recommendation for the viscosity of the fork oil and the height of the air chamber 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.