With this 17mm hex set you can easily convert your HPI Savage to use any 1/8th scale buggy and truggy wheels and tires available from HPI and HB. The black anodized finish matches any paint scheme, and the 17mm hex hub replaces the standard 12mm Savage hex hub, held in place with an M5 locking nut. A large, black, serrated 17mm nut holds the wheel securely in place for racing or bashing duties.