GAUI X3 13T Hardened Steel Pinion Gear Upgrade (for 3.5mm shaft)
- This Hardened steel pinion is far stronger than the aluminium pinion.
- The steel pinions will last much longer.
- These will wear far less, and keep the mesh very accurate between the pinion and main gear.
- Less main gear wear when using steel pinions VS Aluminium.
- Better efficiency due to consistent mesh.