ÖHLINS - Adventure S46 Shock (BM 836)It has a 46 mm piston and is available in a number of different applications with or without external reservoir either with a hose or in piggy back versions. It can also come with pre load spring adjusters, all depending on the kind of bike and requirements of the bike. It is also available with all different kinds of damping adjusters depending on the specific application. Fitment 1987 1994 BMW R 100 GS 1987 1994 BMW R 100 PD 1988 1994 BMW R 80 GS