Quality Wheels Bear Pawls / Stans Arch S1 Rear Wheel - 29" 12 x 148mm Center-Lock XD BLKDurable enough to handle the most technical trails yet light enough to rip XC laps the Stans Arch S1 rim with Bear Pawls hub supports a very versatile wheel. The Arch S1 was designed to provide traction and control when running 2. 25'' to 2. 50'' tires and tubeless ready when you need it. Stans Arch S1 rim is tubeless ready made from 6061 aluminum and features stainless steel rim eyelets for duability 26mm internal width supports 2. 25 2. 5" tires