Treal Hobby Axial SCX10 III Hardened Steel Portal Gears. These gears represent an excellent upgrade, typically applied to the front end to accelerate the rotation of the front wheels in relation to the rear. Utilizing these gears can notably enhance the performance of both the SCX10 III and Capra. To achieve a front-dominant feel, install these gears in the front, while using them in the rear end will create a more rear-dominant feel.