A quick and inexpensive way to make a bike more comfortable, the Dimension High-Rise bar comes in four different rises for easy bar-height changes. Not recommended for use with bar-ends or clip-on aero bars. Four rise options available from 30-100mm. AL-6061 aluminum alloy. ISO4210 Safety Tested for City/Trekking use. Item Specifications: Color: Silver, Width: 660, Bar Clamp Diameter: 25.4, Material: Aluminum, Defined Color: Silver, Back Sweep (deg): 15, Rise: 30, Lever Compatability: Mountain 22.2,