This PAIR of wheels is suitable for Hybrid / Trekking Bikes and are only compatible with rim brakes All our wheels are hand trued and fitted with a FREE RIM TAPE prior to dispatch. Rear Wheel Specification: Rim: 700c Alloy mountain bike Silver rim - 26mm wide, 638mm O/A diameter Spokes: 36 Spindle: Solid axle with wheel nuts Hub: Alloy Threaded Hub Locknut to Locknut: 135mm (approx) Overall Spindle Length: 175mm (approx) Front Wheel Specification: Rim: 700c Alloy mountain bike Silver rim - 26mm wide, 638mm O/A diameter Spokes: 36 Spindle: Solid axle with wheel nuts Hub: Alloy Locknut to Locknut: 100mm (approx) Overall Spindle Length: 140mm (approx) Freewheel Specifications: 6 Speed: Shimano MF-TZ20 14-28 tooth (14,16,18,21,24,28) Tyre Sizes: 700 x 28c - 700 x 45c.