Race Face Arc 35 Offset 27.5" MTB Tubeless Ready Rim - 32 hole Black The Race Face Arc Offset rims utilize an asymmetrical design to optimize spoke tension balance, wheel durability and wheel stiffness. New 6069 Alloy provides a superior strength to weight ratio, significantly improving toughness. It features: 35mm internal rim width (39mm external) Offset: 4.5mm Rim tape, valve and sealant is needed to run a tubeless set-up (sold separately) Sleeved 6069 aluminum for best impact resistance and strength to weigh ratio Optimized for running lower pressures which offers greater traction Laterally stiff tubeless ready alloy rim Max spoke tension: 125kg Size: 27.5" Holes: 32h ERD: 562mm Weight: 520g.