ARRMA ARA311003 20T .08 Mod Safe-D5 Pinion Gear for 3S Vehicles Pit Tools The 1st gear is for

The 1st gear is for hardcore rock crawling and the 2nd gear is for hill climb or high-speed driving

softer cure for detail work

This package includes all the molded plastic details

and on-road vehicles up to 4lbs

ARRMA ARA311003 20T .08 Mod Safe-D5 Pinion Gear for 3S Vehicles Pit Tools The 1st gear is forARRMA ARA311003 20T . 08 Mod Safe D5 Pinion Gear for 3S Vehicles This tough steel 20T 0. 8 Module Safe D Pinion Gear is the perfect part to carry in your RC tool box FEATURES: Strong and durable steel for long lasting performance in extreme RC conditions Precision manufactured wide tooth profile for smooth operation 'D' shaped hole to match motor shaft profile so drive and brakes are not lost if the set screw backs out Suits 5mm motor shaft diameter