Spank Spike 800 Vibrocore Handlebar beat the brake bumps Spanks new Spike 800 Vibrocore Handlebar gives you the best of both worlds-high stiffness at a low weight; terrific comfort and excellent strength. Developed with Spank's World Cup racers, these bars are built to combat the effects of arm pump and numbness. Injected with a complex foam core, they efficiently dampen high frequency vibrations to keep your hands and arms comfortable and strong. Revolutionary technology makes this a bar of unprecedented strength and performance. Features Material MGR Super 6 Alloy Weight 340-360g (depending on width) Diameter 31. 8mm Rise 15/30/50mm Width 800 (w/ premeasured cutting marks down to 740mm) Geometry 4° up, and 8° back | Spank | Spike 800 Vibrocore Handlebar | Black/yellow | 30Mm Rise, 800Mm Width | Aluminum