Wilbers progressive fork spring set, for YAMAHA FJR 1300, Type RP 11 / RP 13, Model Year 06-12, 40 mm Lowering

Product Details

Wilbers progressive fork spring set for YAMAHA FJR 1300, Type RP11 / RP13, Model Year 06-12, 40 mm lowering incl. reducing sleeves, (fork oil to be ordered separately), with ABE according to the application list.

General Description

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

"ZERO friction" friction reduction through vibratory finishing:
During vibratory finishing, the component to be processed, such as Wilbers fork springs, are placed together with grinding media specifically adapted 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 grinding media, and through constant rubbing against each other, lead to a smoothing of the componentupper surface. At the end of the process, a fine, glossy 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 regarding the viscosity of the fork oil and the air chamber height 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.