Easton AXR Road Bike Wheel - Rear - Closeout! Aluminum alloy rim is lightweight, stiff, durable and has a machined sidewall surface for perfectly smooth braking Sleeved rim joint offers better rotating balance and low weight 25mm rim profile with 20mm external rim width for aerodynamics, vertical compliance and cornering traction Easton V5 hub has a steel cassette body and sealed cartridge bearings for long-lasting, smooth-rolling performance, plus it's compatible with Shimano 9/10-speed cassettes