The grip of choice for World Cup style assassin and gloveless wonder, Sam Blenkinsop, the Knuckleduster embodies our attention to detail and our focus on function. Not only have we developed our TRC rubber blend that gives you remarkable grip with incredible durability, the Knuckleduster also features a tapered internal sleeve that you have to tap onto your handlebar for full engagement. This tapered sleeve feels like it is already locked into place once fully tapped onto the bar and coupled with a single bolt lock-on clamp, you will not develop any play. The body of the grip combines the best elements of a half-waffle, mushroom ribbing, and an ergo feel in a stunning package. Featuring DEITY TRC rubber compound for exceptional durability Tapered inner sleeve to insure perfect contact with the handlebar Single clamp design with forward facing bolts that feature loc-tite Lasered black ano 6061 T6 aluminum clamps Short and wide rib design for added comfort with no side to side play Half waffle recessed design for added control without hot spots Chevron v-channel design for your palm swell to give an ergonomic feel Seamless transition through the end of grip for comfort INSTALLATION TIP To fully and properly install your KNUCKLEDUSTER grip due to the tapered inner sleeve...make certain to whack the end of the grip 3 times with the palm of your hand until the grip fully seats onto the handlebar. If you find the fit is a bit tight due to your particular handlebar, a small amount of Isopropyl Alcohol can work wonders for lubrication. Finish the install by tightening the hardware to the specs listed on the packaging.