Spank Spike Race Bars 800mm Wide 50mm Rise 31.8mm Clamp Matte Black. The Spank Spike Race Bars is designed using premium technology to withstand the demands of all-mountain enduro trail and downhill riding.MGR Super 6 Alloy offers increased strength and stiffness compared to conventional alloy bars CNC bending and extreme gradual taper (XGT) technology result in lighter thinner wall Shot-peening and anodizing finishes enhance fatigue life even further TECH SPECS Color Matte Black Rise 50 Material Aluminum Upsweep 4 Defined Color Black Back Sweep (deg) 8 Weight 330 Bar Clamp Diameter (mm) 31.8 Width 800