kingsea 5pcs Hardened Steel 48P Pinion Gear 3.175mm Shaft 33T 34T 35T 36T 37T Pitch Gears with Screwdriver 1/10 RC Brushless Brush Motor RC Upgrade Part

This is hardened steel 33T 34T 35T 36T 37T tooth, 48 pitch pinion gear Suitable for 1/10 RC Car motors with 3.175mm shaft Feature Hardened steel to increased wear resistance and improve fatigue life Nitrided to enhanced hardness corrosion resistance Tooth count: 33T 34T 35T 36T 37T Tooth pitch: 48 pitch length: 9mm For shaft: 3.175mm Package include: 1 X 48p 33T pinion gear 1 X 48p 34T pinion gear 1 X 48p 35T pinion gear 1 X 48p 36T pinion gear 1 X 48p 37T pinion gear 5 X Screws 1 X Hex Key Make sure you thread lock the grub screw. They are hard to find when they fall out. Larger gears will result in higher speeds while smaller gears provide more torque. For quicker acceleration go for a smaller pinion gear (with fewer teeth) and larger spur gear (with more teeth). Your car will accelerate off the mark very quickly with more torque, and you'll also benefit from cooler running temperatures, extending the life of your motor and ESC. How to install the pinion gear: You will probably need to loosen the motor a bit, in order to fit the pinion gear on. Make sure you lock it in place on the flat portion of the motor shaft. When you are tightening it back up, make sure you leave about a gap between the pinion gear and the spur gear. That gap will be very small. It should be about the thickness of a piece of paper.