Shock Absorber Type 640 Road Preload Adjuster:Mechanical (X-PA) (+$460) With its radial piston

With its radial piston

This prevents oil thinning and cavitation (foaming) during hard

Zero Friction progressive fork springs

the pressurized (3 bar nitrogen) closed cartridge maintains bubble-free damping for consistent feel at extreme loads and temperatures

and the spring preload is continuously adjustable

Shock Absorber Type 640 Road Preload Adjuster:Mechanical (X-PA) (+$460) With its radial pistonThe Wilbers suspension conversion provides a noticeably improved fork response. This is achieved by replacing the stock linear fork springs with progressive ones, allowing for a smoother initial reaction and greater reserve in the second spring rate. The original shock absorber has relatively high rebound damping. In our setup, the spring rate has been slightly increased and both rebound and compression damping optimized. Additionally, the suspension