WTB Moto X Clamp-On Bicycle Handle Bar Grips Large blocks and a tapered shape provided unshakeable grip for those who ride at high speeds. At 35 millimeters in width, it is the thickest grip in the WTB line, providing the perfect point of contact for riders with large hands Dual clamp-on Black/Black Thick (35mm) diameter. Large knobs Windowed sleeve WTB DNA rubber Designed use: All mountain/Freeride