The Robinson Racing Hardened Steel Idler Gear is a direct replacement upgrade for the Axial AX10 Scorpion, SCX10 family of trucks, and SCX10 II RTR. This is a great durability upgrade for any rig that uses the AX10/SCX10 style transmission housing. Robinson Racing Gears are precision machined for the ultimate in performance and reliability.

NOTE: This is not compatible with the SCX10 II Kit transmission.