HPI Racing Heavy Duty Spur Gear 43Tx5mm Savage XL (Opt) HPI114587 CIS80468 or just using lipo batteries

or just using lipo batteries in other applications

RPM A-arms are the toughest arms you can buy and we back that statement with a lifetime breakage warranty*

Includes markings to recreate Japanese

13 sec / 60

*REPLACES DERSCBLY*

HPI Racing Heavy Duty Spur Gear 43Tx5mm Savage XL (Opt) HPI114587 CIS80468 or just using lipo batteriesThe more teeth on the clutch bell (or fewer the teeth on the spur gear) the more top speed with slightly reduced acceleration, ideal for smooth surfaces or longer straights. The fewer number of teeth on the clutch bell (or the higher number of teeth on the spur gear) better the acceleration and torque with slightly less top speed, ideal for rough terrain and steep hills.