Touratech - 30mm Lowering Progressive Fork & Shock Springs - BMW F650GS Twin 08-12**** Our recommendation: have the replacement springs fitted by a specialist workshop. **** Side stand and center stand can be used without further changes. The height lowering kit by Touratech Suspension, from the Dutch specialist Hyperpro. The set includes replacement fork springs and a replacement spring for the shock absorber. This spring set provides you with a sensible 30mm reduction in height without affecting the riding properties at the