NOTE: Before purchasing you must compare the measurements from your current rear roller to the measurements listed for this rear roller. Axle length 23.125", Axle OD .668", Barrel length 20", Barrel OD 1.79", Threaded holes on axle ends 8-1.25mm, Distance from center of threaded hole to end of axle .53", Barrel ends flair to 1.81" on each side.