650B

- Ultra-Heavy Duty for Aggressive Riding - The R model is our rear specific design: added traction on both pedaling and braking durability without compromising rolling performance over a mixed variety of terrain, maximized for both dry or wet conditions due to the E-MTB specific SmartGRIP+ Compound. - All with a new standard of rubber lifespan and casing reliability from incorporating the HyperWALL construction. - Best paired with an M on front for a balanced riding style.