Wilbers progressive forksprings for Yamaha MT09 from model year 2021-

Product Details

Wilbers progressive forkspring set for Yamaha MT09, Type RN69, from model year 2021-

General Description

Depending on the application, Wilbers offers progressive or linear forksprings, manufactured from the best and highest quality chrome-silicon steel. For touring and touring-sport applications, we generally recommend a progressive forkspring to optimise response and increase bottoming resistance. The combination of 'Zero Friction' forksprings with specially developed Wilbers forkoil, as well as observing the correct air chamber for the respective vehicle, is very important. If desired, individual tuning can be achieved in special cases by changing the air chamber.
For motorsport applications, we recommend Wilbers' very lightweight linear chrome-silicon forksprings, which were co-developed by the motorsport team.

"ZERO friction" friction reduction through slide grinding (mass finishing):
During slide grinding (mass finishing), the components to be processed, such as Wilbers forksprings, are placed together with an abrasive body specifically designed for this purpose in a vibrating container, known as a trough vibrator.
The vibrations of the container create a relative movement between the workpiece and the abrasive body, and through constant rubbing, lead to a smoothing of the componentuppersurface. At the end of the process, a fine, glossy surface is achieved.
For Wilbers forksprings, this reduction in surface roughness means a minimisation of friction = ZERO friction.

Each forkspring set includes a recommendation for the viscosity of the forkoil 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 forkoil separately.