TRAXXAS XRT/X-Maxx 35T Spur & 20T Input Gear XRT3520S Upgrade by GPM  [XRT3520S]

Heavy-duty spur and motor input gear for TRAXXAS XRT 8S

This aftermarket upgrade kit is intended for selected TRAXXAS XRT and X-Maxx 8S platforms. The major gears are made from 20CrMnTi steel and the package includes a 7075 aluminum fixed mount plus bearings to establish a three-point support that improves load distribution over the stock two-point layout.

The kit pairs a 35T spur gear with M1.5 module and a 20T transmission input gear with M1.0 module into an integrated motor-gear and input-shaft design that eliminates the older 2.5mm locating pin. Manufacturer supplied dimensions include a 35T spur with a 6mm D-shaped motor hub opening, 14mm tooth width and roughly 55.4mm outer diameter, along with a 20T motor gear with 1.0 module.

Choose this set to reduce wear and keep gear mesh consistent under the higher torque loads of 8S systems. The maker specifies the part is not suitable for TRAXXAS 1/5 X-Maxx 8S Monster Truck-77096-4.

For Australian hobbyists running 8S TRAXXAS XRT or X-Maxx rigs, this GPM upgrade swaps in hardened steel gears and a 7075 mount to improve longevity and transmission stability under high load.