(1) aluminum transmission case with aluminum heat sink motor plate

these are a must

resulting in a cooler running motor

#160207 - fifteen52 TURBOMAC 31mm 12mm OFFSET (WHITE/2pcs)

Four 38mm (1 1/2") straight sections

Losi LOS262000 Chain, 70 Roller: Promoto-MX Gears (1) aluminum transmission case withLosi LOS262000 Chain, 70 Roller: Promoto MX The Losi LOS262000 is a 70 roller chain built for the Promoto MX. The chain transfers power from the front sprocket to the rear wheel, driving the bike forward. Replace a worn, stretched, or broken chain with this part to keep your Promoto MX's drivetrain running smoothly. Genuine Losi part, number LOS262000 70 roller chain Compatible with Promoto MX