#106631 - THREADED PINION 22Tx12mm (1M) (ORANGE) NITRO 3 Genuine HPI quality spare part for easy maintenance and repairs. See below for kit reference.
#A880 CLUTCH BELL FOR NITRO RS4 2 SPEED
#86036 DRIVE SHAFT 6x52mm (2pcs)
#A882 HEAVY-DUTY 1ST GEAR ADAPTER (PURPLE/NITRO 2 SPEED)