Rims

- An ultra-wide, high performance alloy rim, weight optimized for Enduro, Trail and All Mountain use - Tubeless ready with anti-burp rim hooks to prevent the loss of pressure and keep tires firmly in place - 32 holes with an inner width of 35mm and outer width of 39.5mm provides ultra-wide support for Plus-Size and high volume tires - The corrugated rim center, a brand acclaimed technology, adds exceptional strength, making it more rigid and allowing the rim to be wider without adding material - Shotpeen finish to increase fatigue life and make it more durable - MGR Dynamal Alloy

Race Face's popular AR rims have been updated for 2019 with an asymmetric rim profile, improving spoke tension balance and overall wheel build quality and durability. The rim extrusion has also been improved to increase impact performance for more aggressive applications. With a tubeless compatible rim profile and color match capabilities, these rims are ready for any build you can throw at them. - Offset nipple bed for improved spoke tension balance and wheel strength/stiffness - Tubeless ready with strong tire retention bead

The reliable rim with an ideal price-to-performance ratio! A state-of-the-art, high-quality aluminum rim, making for the perfect upgrade on any road bike. That is what the new RR 421 rim is all about. The welded rim supports wider tires and still offers a super-lightweight wheel build-up.