HPI Baja 5B
The new RC4WD matched spur and pinion gears are here. This set is considered a “Speed Set” because there is an additional tooth on the pinion and one tooth less on the spur gear creating a higher top speed with no modification to the engine. Just pop them in an go!!
The stock gearing is 17 tooth pinion and 57 tooth spur. This set is 18T and 56T made of solid machined steel. Use this set when your looking for that extra top speed without pushing your engine to the limit.