23-T pinion (1.0 metric pitch) (fits 5mm shaft) , with set screw
for Traxxas 1/6 XRT 78086-4 1/10 Maxx 89086-4
Replace 6481X
Gear adjustment : You need to take some paper (note paper is ideal), and cut a piece off, approximately 1/2” x 3”. Then you insert that paper between the pinion and spur gears, and put around 1 lb of force on the motor, making sure that the gear's teeth mesh properly. After tightening down the motor mount screws (refer to point #1) and removing the paper, you should be ready to run all day!
Description
Harden Steel 23T Pinion Motor Gear for Traxxas 1/6 XRT 78086-4 1/10 Maxx 89086-4 Replace 6481X