Robinson Racing Products 8720 Hardened Machined .8 Mod 20T Pinion Gear w/ 5mm Bore 4x4 Mega Pick up an EU821 or

Pick up an EU821 or WOW121 diesel decoder to use this product

47″ x 38″ oval of snap-fit E-Z Track® including 12 pieces of curved track

Welded/removed nose gyralight

4 inches (289 mm)

Robinson Racing Products 8720 Hardened Machined .8 Mod 20T Pinion Gear w/ 5mm Bore 4x4 Mega Pick up an EU821 orRobinson Racing Products 8720 Hardened Machined . 8 Mod 20T Pinion Gear w 5mm Bore Extra hard high carbon brushless motor pinions are built to last with hi performance GEN3 steel slipper units. Pinion is precision machined and stamped with the number of teeth. One 4mm set screw included. 2mm allen wrench (not included) fits the 4mm set screw. Can be run on cars using a 5mm motor shaft. 5mm to 1 8 inch Reducer Sleeve required for 1 8 inch shaft motors.