The Bontrager XR Elite Lock-on Mountain Bike Grips have a thin textured grip for added feel & control on the trail. The XR Elite grips have a 30mm diameter compared to 32mm for the Bontrager SE Elite grips. This translates to more feel & feedback through the bars without compromising on control. The tread pattern on the XR Elite grips is designed to funnel sweat away from contact points for effective moisture management, making it much less likely that your hand will slip. To make the grips even more secure they come with core lock clamps to securely hold the grips to your bars. Features The tread & rubber compound provide secure grip, control & comfort Tread features continuous channels to funnel sweat for effective moisture management The single-clamp design maximises grip surface for secure, predictable performance Core-lock clamp eliminates slipping by securing grip core to bar 3mm M4 bolt increases hold & resists stripping 30mm diameter