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Part No. Description Image Comment
6917 PINION GEAR 17T 48P
6918 PINION GEAR 18T 48P
6919 PINION GEAR 19T 48P
6920 PINION GEAR 20T 48P
6921 PINION GEAR 21T 48P
86831 ALUMINUM FRONT SUSPENSION ARM MOUNT Replace the standard resin front suspension arm mount and front arm brace with these aluminum ones for much greater strength. It is highly recommended to use #86831 and #86832 together.
86832 ALUMINUM FRONT ARM BRACE
86842 TITANIUM NITRIDE COATED SHOCK SHAFT 3x50mm (2pcs)  
86843 TITANIUM NITRIDE COATED SHOCK SHAFT 3x58mm (2pcs)
86844 TITANIUM NITRIDE STEERING POST 3x23mm (2pcs) The titanium-coated parts provide ultimate smoothness!I
86845 TITANIUM NITRIDE SUSPENSION SHAFT 3x32mm (2pcs)
86846 TITANIUM NITRIDE SUSPENSION SHAFT 3x27mm (2pcs)
86847 TITANIUM NITRIDE SUSPENSION SHAFT 3x54 mm (2pcs)
86848 TITANIUM NITRIDE SUSPENSION SHAFT 3x33mm (2pcs)
87256 ALUMINUM REAR HUB CARRIER SET (0 Degree) Available now from HPI Racing is Aluminum Rear Hub Carrier Set (0 degree) for Firestorm 10T. Making the rear toe angle smaller will improve steering response and top speed. Replace the standard resin rear hub carrier set with the aluminum ones for higher stability.