The XB4 gear diff ensures increased traction on slippery tracks. Suggested also to use on bumpy surface where it helps to better absorb the bumps. Larger oil volume prevents the diff from overheating, extending its lifespan.

The super-smooth gear diff includes a composite case and cover with exchangeable spur gear. The gear diff set includes 81T spur gear and a range of various spur gears is available as an option.

The internal gears are precision-molded from tough XRAY developed composite material, ensuring long lifespan and super-smooth, efficient operation.

The maintenance-free diff design will benefit racers of all levels. When the diff is correctly built, there is no need for maintenance for a very long time… no need for frequent oil changes, and no leakage due to our superior sealing system.