Roval's Hardrock 29 Rear Wheel is a great replacement hoop, spare wheel, or even a great way to update an older mountain bike. This durable, aluminum rear wheel has a disc-compatible hub and a machined rim braking surface on the double-wall rim so it's ready for almost any mountain bike, no matter your brake setup. Non-rusting, stainless-steel spokes round out this high-quality, high-value wheel.
Specialized, 6-bolt disc
Shimano/SRAM 8-/9-speed (cassette sold separately)