The SKS Chainbow 48 Teeth chain guard is an aluminum-plastic cover designed for derailleurs with a maximum diameter of 199 mm, which corresponds to 48 teeth. This protector effectively protects the chain and derailleur from dirt, while protecting the rider's clothing from getting dirty or snagging. It is compatible with different types of bicycles and can be easily mounted on most standard frames.Technical data: • Maximum derailleur diameter: Ø 158 mm, maximum 38 teeth • Maximum derailleur diameter: Ø 175 mm, maximum 42-44 teeth • Maximum derailleur diameter: Ø 199 mm, maximum 46-48 teeth • Maximum gear diameter: Ø 158 mm, maximum 38 teeth (for Bosch drive unit)