HPI Racing Tuning Part #6931.
Genuine HPI quality tuning part for easy optimization and tuning. Tough steel 48DP pinion gear for use in HPI touring cars, circuit racers and other cars. Includes a 1.5mm set screw for attaching to motor shafts.
- HPI Racing RS4 Sport 3 - incl. Drift and Flux models.
- HPI Racing Savage XS models.
- HPI Racing Jumpshot models.
- HPI Racing Crawler and Wheely King models.