Race Face designed the Aeffect R 30 eMTB Boost Wheels to be tough on trails and easy on pricing. The Aeffect R eMTB rim is tubeless ready with a 30-millimeter inner rim width that supports tires from 2.2 to 2.8-inches. This wheelset sports a 6069 alloy rim that saves weight and supports a 4.5-millimeter, 32-hole spoke bed that increases stiffness and strength. It also comes complete with a steel axle and steel cassette body options, plus durable cartridge bearings and 10-degree engagement.