The original GP1 ergonomic grips set the global standard in ergonomics, comfort, materials and quality. Grips effectively counteract hand numbness, finger pain and forearm fatigue. The special certified material developed in Germany guarantees top quality.the aluminium sleeve fixes the grip in place and prevents it from moving while riding, while allowing perfect adjustment of the grip angle. Grips are compatible with carbon handlebars. The Nexus/Rohloff version has the right grip shortened specifically for Rohloff® / Nexus® / XX1® / Single Twist Shifters. Material: certified rubber compound Sleeve: aluminium Weight: 185 g Use: MTB, travel, commuting