Todd's Cycle Tall Bone Bar Risers For Harley High-quality billet aluminum construction with a one-piece riser top clamp. Available for bars with 1 diameter in the clamping area. Risers are tapped for 1/2-13 riser bolts that are sold separately. Risers are 3 1/2 apart on center. Features: Available in black or chrome finish 8 high with 5 wide top clamp Made in the USA