Wilbers Powered by ZF Open Cartridge Kit

BMW F-Series one-sided cartridge kit.
Because the current F-Series uses asymmetrical fork legs, our solution fits a cartridge only on the right side. On the left, the stock spring is replaced with a progressive Wilbers Zero Friction spring; on the right, the non-adjustable cartridge is upgraded to a Wilbers powered by ZF open cartridge with adjustable rebound and spring preload.

Combined with Wilbers Zero Friction fork oil, you get a much more compliant fork response and a big comfort gain with ample reserves for hard braking and fast riding.

Kit contents:
– 1× progressive Zero Friction spring for the left leg (with reduction sleeve when lowered)
– 1× open cartridge for the right leg (rebound + preload adjustable)
– 1–2 liters of SAE 5 fork oil