Fit 3.175mm Shaft Size Motors,please make sure the RC motor shaft have the same diameter,Also make sure the spur gear and pinion gear have the same pitch, otherwise the teeth won't mesh.
For 3.175mm shaft motor of 1/10 RC Car.Compatible with Arrma HPI Kyosho Losi Axial Traxxas Tamiya Associated 1/10 RC Car Monster Truck Buggy
The 48P pinion gear sets are made of hardened steel,durable and reusable.
Universal upgrade 48P pinion gear,total 5Pcs,28T 29T 30T 31T 32T with 3.175mm inner diameter.
The variety of tooth pinions allows for more gear setups,for different racing track conditions.
To avoid the ESC/motor overheat,please check the ESC and motor temperatures regularly throughout the run after change the pinion gear.
Easy to install and upgrade.Come with grub screws.

Material:Steel
Tooth count: 28T 29T 30T 31T 32T
Tooth pitch: 48 pitch
Height: 9mm
For shaft: 3.175mm(1/8-Inch)

Package includes:
5x Pinion gear(28T 29T 30T 31T 32T)
5x Grub screws