Product Description:
Compatibility: 3.175mm shaft motor for 1/10 RC car, please make sure your RC car motor shaft has the same diameter,Also make sure that the spur gear and pinion have the same pitch, otherwise the teeth do not mesh.
Material: High quality hardness steel.
Weight:19g/set.

Packing list:
4x Pinion gear(17T 18T 19T 20T)
4x screws
1 X Hex Key

Note:
First, you can start with the smallest teeth. Then, upgrade to larger teeth and check ESC and motor temperatures regularly throughout the run. Finally, you can control faster speeds while avoiding potential risks such as ESC/motor damage or failure due to overheating.
Note:
Lighting shooting and different monitors may cause some differences between the color of the items in the pictures and the real thing, please allow some small manual measurementerrors.
After-sales service:
If you are not 100% fully satisfied with our products, please feel free to contact us for a refund or replacement We are at your service 24 hours a day!