RRP1338 38T Pinion Gear 48P Aluminum 1/8" or 3.17mm Bore
The "Pro" Pinions are precision machined from 7075 grade aluminum and anodized with a super hard jet black finish that not just hardends the surface but also protects the gear from corrosion and increases the lubricity by reducing friction and adhesion between the pinion gear and spur gear.
Recommended for onroad, but they can be run off road. A wide selection of tooth sizes are available. Tooth number stamped on each pinion. 1/8 inch (3.17mm) bore. One 5-40 set screw included. The pinions have an 1/8" bore, are stamped with the tooth number for easy identification and include one 5-40 set screw. These gears are available in a variety of tooth count options to fine tune the torque and top speed of your vehicle. Smaller the pinion more torque and larger for higher top speed.