The Diamond knurled texture, with saw tooth finger ramps and a super tacky 20A compound provide ultimate traction. More traction means less death-gripping the bars and less arm pump. Our single lock has the profile of your favourite double lock-on. But to reduce hand numbness we've replaced the hard outer clamp with extra rubber for greater cushioning of your palm heel. Get all the benefits of an “ergonomic” grip without the city bike cruiser look!