Raceface Aeffect R eMTB Rear Wheel - 32 148mm Disc IS 6-bolt6069 rim material with 30mm internal width, delivers impressive rim durability and impact resistance 4. 5mm offset improves spoke (32h) tension balance, increasing wheel stiffness and strength Trace hubs deliver eMTB rated strength for every rider with 10 degrees of engagement Super strong steel axle Steel cassette body 10 degree engagement 2105g (27. 5") 2190g (29") TECH SPECS Axle Type 12x148mm TA Freehub Body SRAM XD Hub Model Trace Hub Spacing