MST RMX 2.0 alum. spur gearbox driving set (black)

***Great part, but INCOMPLETE set***

The upgrade itself is cool, no issues after running a few sessions and the performance upgrade is nice. The car feels more planted with the linear gears rotating inline to the direction of travel compared to the bevel gears of the previous iteration.

HOWEVER, be warned that not all the parts required are included to assemble. You will either have to take the 10x15 bearings (holding the outdrive cups, part #120001) from your old gearbox or purchase 2 for this build, the instruction also does not make mention of this but is drawn in the examples.

The design of the gearbox itself corrected a major issue from the first version.

The older version had 2 screws running across the center, bolting onto the motor mount. Most people, myself included had a tendency to over-tighten them causing a bind which could eventually cause excessive wear to all connected gears, including the motor.

This updated gearbox does not have central screws and the two halves are held together using screws on the front and the rear of the gearbox.

The price is steep but most of that is from the cost of the aluminum gearbox alone.

Huge improvement in performance. Great quality and arrived quickly.

Best upgrade from bevel gears and spool. Smooth and quiet