29ers are all about speed, and the Hardrock 29 wheelset delivers on this in spades—no matter if you're just getting started or you're a seasoned trail rider. The wheels have been built tough to meet the rigors of mountain biking head-on, while the ample wheel size guarantees a fast-rolling good time. They features a durable, double-wall alloy rim construction that adds strength without stacking on the weight, and to ensure that you'll be able to stop once you get motoring, the wheels are both disc- and rim-brake compatible. High value just met high performance. - Disc-compatible hubs can also be used with traditional rim brakes. - Double-wall rims are strong and durable. - Machined braking surface creates superior stopping power in any condition. - Stainless spokes won't rust, easing long-term maintenance. - 8-/9-speed cassette rear hub provides plenty of gearing options for climbing and riding the flats.