Kyosho Fazer FZ02 Ball Differential Set

Really nice ball diffs! It's mostly plastic but it's very high-quality and durable. Everything works so smoothly and goes together very easily. Instructions are clear and it took maybe 20 minutes to build the first and half that to do the second. I'm running this on a 21.5 Juststock setup that I run at a small indoor track. Handling was definitely improved, especially coming off the corners, as the ability to tighten the front and loosen the rear has eliminated the common tendency for the rear end to want to come around off the corners. Being that I'm just running a 21.5 Juststock system, I can't confirm how this would handle big power, but I think it would do pretty well. Yes, the gears are plastic, but they're very durable. If you just drive/bash your Fazer, this probably isn't gonna be a necessary or noticeable upgrade, but if you're running on a track, especially in a spec class, this makes a world of difference.