Milwaukee Twins 1 Drag Bars Milwaukee Twins Drag Bars presents you with a simple handlebar that has been created from high-quality steel. The diamond knurled center offers a non-slip clamp in the risers. Features: Dimples for late model controls Diamond knurled center Dimensions: 1 diameter 0 rise 32 wide 4 1/2 pullback 3 1/2 on center knurling Note: Will not fit TBW models.