Motorcycle 4Pcs Set STD to +100 28mm 27.75mm 37.50mm 27.25mm 27mm Balance Crankshaft Bearing for CF650 CF 650 This set includes four engineered crankshaft balance bearings designed to fit motorcycle engine models requiring sizes ranging from standard to +100 oversize, including 28mm, 27.75mm, 37.50mm, 27.25mm, and 27mm.The bearings are built for performance in crankcase balance systems, supporting smooth engine and reduced vibration.Suitable for use during engine rebuilds or replacements where specific diameter options are needed.Each set contains a complete assortment of bearings sized for compatibility with applicable CF650 and CF 650 engine configurations.