Description The Ergon GP1 Evo Biokork Grips are the evolution of the original award winning comfort grip from Ergon. Ergon has further refined their best-selling winged & sustainable handlebar grip. These environmentally conscious Ergon grips are made form 40% cork sourced from sustainable forests in Portugal and utilising an inner core reinforced with natural fibers. Like all Ergon grips, the GP1’s eliminate numb hands, aching fingers, and tired forearms. Fitting these grips will be easy using their simple clamp fitted to the far end of the grip. Updating their design the bolt on the clamp will now be neatly hidden on the underside of your handlebars. ERGON GP1 EVO BIOKORK GRIPS FEATURES & SPECS Compatible with carbon handlebars Ergonomically correct hand position Optimal pressure distribution across the palm of the hand Effective pain prevention for the hand and wrist Made from organic cork / Grass fiber compound & Medical grade rubber Forged aluminium clamp – 100% recyclable Sold as a pair Since hand sizes vary from person to person, these Ergon grips are offered in two sizes; Small and Large. These sizes refer to the gripping circumference. The large size is a thicker grip, and the small is a thinner grip. Two size options offer better hand closure around the grip surface. These size differences have a direct impact on the overall handling of the bike, as well as comfort. Size Small – suits a 92mm hand circumference, or a glove size XS-L Size Large – suits a 102mm hand circumference, or a glove size XL-XXL