Hot Racing spiral cut differential ring and pinion gear set for the HPI Savage vehicles
- Steel is CNC machined and hardened
- Precision machined spiral cut gears for increased torque transfer, smooth running, and less vibration and noise than conventional straight-cut
- Speed tune ratio of 3.25:1
- One (1) 26 tooth diff spiral cut ring gear
- One (1) 8 tooth spiral cut pinion gear
- OD: 43.1mm
- HSF299X has an increased tooth engagement than its predecessor (HSF299) for greater torque/power capability