Aluminium rear sprocket 39Z 520
- Over 60% lighter than a conventional steel sprocket
- Made on precision CNC machines
- Flat and concentricity tolerances of less than 0.1 mm
- Made of high quality and high strength aluminium
- special surface treatment
- Avail
Please note, that vehicle spare parts should only be installed by a qualified specialist workshop to ensure their proper function and the road safety of the vehicle.: