Optional Traxxas spur gears allow you to increase or decrease the final drive ratio and tune for different applications
For use with 1.0 metric pitch pinion gears
Tough nylon construction for high-power applications
One gear per package
This is the 3955 Spur Gear 1.0P 40T Revo from Traxxas. Traxxas has grown to become the number-1 selling name in RTR nitro and electric models for the last 4 years running. No one has done more than Traxxas to advance the RTR category with innovative thinking and fun designs that make it easy for anyone to get started in the great R/C hobby. Traxxas, truly the fastest name in Radio Control.