AME Clamp-On MTB 1.1 Tri grips are composed of Vulcathane, a specially blended rubber compound combined with UV stabilizing ingredients that exhibit superior oxidation and ozone resistance Will not absorb moisture, deteriorate, harden or become slick with age, all the while providing and maintaining superior comfort A'ME MTB Grips are easy to install and are available in a variety of colors that compliment most mountain bikes The 1.1 design features our popular raised A'ME triangle pattern in a small diameter, lightweight grip for racers and riders with small hands Proprietary blend of TPR rubber compound and Vulcathane promotes better control under any condition Low profile design eliminates hand fatigue Made in USA Length 136mm Diameter 28mm Lock On Low profile design eliminates hand fatigue 1.1 design features our popular raised A'ME triangle pattern in a small diameter, lightweight grip