Wolf Tooth Locked-In Bar Ends Grip Less, Control More Arm pump is a grip problem. When the terrain gets rowdy, riders white-knuckle the bars to stay connected to the bike and that's exactly what wears you out. The Locked-In Bar Ends solve it by giving the outside of your hand somewhere to push and load, so your fingers can ease up without losing control. That means you can drive the bike into corners harder and stay relaxed on long, pinned descents. Developed alongside World Cup DH athlete Joe Breeden and iterated with input from racers at the highest level, the shape and rubber durometer are tuned for confident, ergonomic support. The lobed, keyed interface locks the bar end in place so it stays put no matter how aggressive the terrain gets. A chamfered leading edge shrugs off trail debris and tree strikes rather than catching them. Features Ergonomic outboard rubber flange supports the hand for a lighter grip on the bars, reducing arm pump on long technical descents Lobed anti-rotation keyed interface locks the bar end against rotation inside the handlebar during hard riding Chamfered leading edge deflects trail obstacles and tree strikes instead of catching them Patent-pending design developed with Joe Breeden and Nukeproof Axess Racing shape and durometer refined with World Cup DH athletes for real-world ergonomic performance Adjustable angle set with a 4mm hex wrench to 3Nm torque to match your hand position and brake lever setup Compatible with most carbon and aluminum handlebars fits bars with an 18. 0mm or wider internal diameter Open-end grip required works with push-on grips and lock-on grips with open ends; closed-end grips can be converted with the sold-separately Wolf Tooth grip punch | Wolf Tooth Components | Locked-In Bar Ends | Black | Pair | Aluminum