RCG Racing Wind Speed/Storm Rider Brushless Machined Differential Gear Complete With Metal Cups

The machined teeth mesh perfectly with the stock spur gear, and those metal cups feel rock solid compared to the plastic ones I was replacing. Installed it in about 20 minutes and the drivetrain runs silky smooth now.

The metal cups fit perfectly on my Storm Rider and feel much more durable than the plastic ones that came with it. Differential action is noticeably smoother now during hard turns on the track.

The machined gear teeth mesh so smoothly with my brushless setup that the whole drivetrain sounds quieter now. The metal cups feel properly dense, not like the cheap pot-metal ones I've had before, and they haven't loosened up after a few hard runs. Exactly what I needed to rebuild the rear end with