Type: Handlebar Riser. 1" clamping area, works with factory 1" handlebar, 3.5" center on center riser spacing. Tapped to accept 1/2 x 13 bolts on bottom side(Bolts not included) (Standard Size). 3.5" Handlebar Riser Top Clamp Kit For Harley Sportster XL Softail Dyna 1" Bar.