Rim: Aluminum alloy double-layer disc brake rim, with an inner width of about 20 mm, supporting tires between 26*1.35-2.35.
Hub:Compatible with Shimano & Sram, Suitable for 7, 8, 9, 10 speed flywheel.
Specifications: 100MM before opening and 135MM after opening.
Brake: 6-hole disc brake seat, The center distance of the hole screw is 44mm.
Spoke: No. 45 steel bar (not stainless steel).