Ergon GP1 Evo Grips Ride Longer. Hurt Less. Touring riders, commuters, and anyone who logs long hours on flat or riser bars knows the problem: round grips concentrate pressure in all the wrong places, and by the end of a long ride your hands pay for it. The GP1 Evo solves that with an ergonomic wing that redistributes load across the palm, takes the bend out of the wrist, and keeps numbness and forearm fatigue from cutting your ride short. Laser-applied surface textures give the rubber a feel that a standard knurl can't match, and a fiberglass-reinforced inner core adds rigidity where the wing meets the bar so the grip doesn't flex underhand. Two durometers put softer rubber where your palm needs cushion and firmer rubber where the grip takes wear. Available in Small and Large to fit different hand sizes, with the same wing geometry across both. Features Ergonomic wing design redistributes palm pressure and supports the wrist in a neutral position to reduce numbness and forearm fatigue on long rides Dual durometer rubber construction two matched compounds tuned for comfort where you need it and durability where the grip wears fastest Laser-applied surface textures precision traction zones adapted to the hand for grip and control across the full contact area Fiberglass-reinforced inner core adds rigidity and vibration damping while keeping the wing stable under load Single forged aluminum clamp, underside bolt adjustable wing angle, clean profile, fits 22. 2mm handlebars including carbon bars Right and left specific, two sizes Small and Large share the same wing and length; size difference is grip thickness in hand Specifications Grip Type Lock-on, Winged / Ergonomic Outer Diameter Length128mm (regular)Clamp Style Single external lock-on, forged aluminum, underside bolt Core Diameter22. 2mm Compound / Durometer Dual durometer rubber; specific values not published Weight165g (Small), 195g (Large)Intended Use Touring, Commuting, Gravel, E-Bike | Ergon | Gp1 Evo Grips | Black | Small | Rubber