Allows use of all Race Face, Shimano and select FSA 24mm diameter spindle cranksets (MTN or ROAD) in 41mm diameter Press-Fit (Shimano Type) BB Shell Frames. Key Features: Precision CNC machined and anodized aluminum alloy cups., More accurate, durable and stable press-fit interfaces than the competitors\' molded plastic parts., Serviceable bearing design.,. Specification: Built for: XC / AM / ROAD, Compatibility: Fits any of the following 41mm diameter Press-Fit BB Shells:, BB92 (92mm Asymmetric MTN),BB89.5 (89.5mm Symmetric MTN),BB86.5 (86.5mm Symmetric ROAD), ..