Intense Spider suspension bearing kit for ALL Spider frames produced from 2012-2018. Has bearings to cover aluminum frames, carbon fiber frames, 27.5 wheeled frames, and 29er frames. Includes a combination of black oxide MAX sealed radial bearings and angular contact MAX greaseble bearings (grease replenished through "Zerk" grease fittings with grease "gun"). Enduro MAX bearings are the best bearing available for suspension pivot applications as they offer 40% greater strength--ideal for low-rotation/high load pivot duties. NOTE: If black oxide bearings are not available, Enduro MAX bearings without the black oxide finish may be substituted.