Wunderlich - Suspension Shock Absorber S1 + HPA Options:Rear - Standard They create a modern "cartridge

They create a modern "cartridge style" damping curve for these simpler fork designs

The thumbwheel allows fast screwdriving

XCA & XCX (all ’15 on) use M6x45mm bolt from BHG-059 kit

It uses a standard stepped arm

Wunderlich - Suspension Shock Absorber S1 + HPA Options:Rear - Standard They create a modern "cartridgeFacts and Product Features of Wunderlich Suspension powered by TracTive S1 HPA Shock Absorbers The S1 HPA shock absorber is the first upgrade for riders looking to optimize their stock suspension or replace their aging stock suspension with a higher quality option. Each high quality all round shock absorber features a damping setup specially developed for the respective vehicle model and application and is primarily aimed at touring riders who