HPI 76969 Threaded Pinion Gear (19T * 16mm) (1M/2nd Gear/2 Speed)

HPI Racing 76963 Threaded Pinion Gear 18Tx12mm (1M/1st GEAR/2SPEED) R40

RC HPI R40 Nitro 2 Speed 21Tooth Pinion Gear Aluminum Green (1) 76971

HPI 76969 Threaded Pinion Gear (19T * 16mm) (1M/2nd Gear/2 Speed)

HPI Threaded Pinion Gear 21Tx16mm

Vintage HPI Nitro R40 19T 2nd 1M Threaded Pinion Gear for 2-Speed Transmission !

HPI Nitro RS43 22Tx12mm (1M) Orange Threaded 2-Speed Pinion Gear HPI106631

Vintage HPI Nitro R40 20T 2nd 1M Threaded Pinion Gear for 2-Speed Transmission !