The Wilbers Racing Suspension shock 641 respectively 631 is fitted with a hose connected compression tank. Therefore it is completely and individually tunable in rebound, compression and preload.
All our Wilbers suspensions are specially tuned to your requirements!
Please inform us about your weight with clothes and helmet, the weight of your luggage (and perhaps pillion rider), where you ride (street, off-road, race), how you ride (sport, touring, and so on) and the desired colour of the suspension (Sport Line = blue, Classic Line = black) in the "comment" of your order.
BMW R850GS (BMW 259/R 21) 1999-*