Yeah Racing Aluminum Hex Adaptor Set 12x6mm For 1/10 RC Touring Drift Crawler Black - WA-033BK 312101 Four 6x16x0

Four 6x16x0

21 tooth pinion gear (the model requires two pinions)

This a pair of optional RPM extended right rear A-arms in blue for the 1/10 scale Traxxas Summit

Length: 48mm (1 7/8")

Yeah Racing Aluminum Hex Adaptor Set 12x6mm For 1/10 RC Touring Drift Crawler Black - WA-033BK 312101 Four 6x16x0Aluminum Hex adaptors for a more evenly distributed load on your drivetrain when compared to the plastic ones included with most kits. Features a set screw locking which prevents it from falling out when changing wheels. Also a wide variety of thicknesses for you to choose the most suitable for your car that matches your body! Features: For: R C vehicles which use 12mm hex Material: Aluminum Includes: Hex Adaptor (4 pcs) Hex Pin (4 pcs) Hex Adaptor