The rear clip on my R2E is mostly converted over to Team Walbern from OEM (Original Equipment Manufacturer). I use Team Walbern nitro parts - because they fit my OEM electric chassis. You probably have most of what I bought already on your chassis. Not sure why you want to stay with double reduction (spur/pinion - pulley/belt) over a single reduction (spur/pinion) electric setup. Unless you're like me, and that's what you've got and you have to make it work. I race double reduction; but it's not for everybody. My biggest challenge was modifying an electric motor mount that would not flex, resulting in separation/misalignment b/w spur/pinion. After I broke the code on that, the car began to perfom reliably. That was for a 2.5 car. Now that I've gone TFE, I'll have to re-engineer that piece again. The downside is I still have too much rotating weight-that kills a cars performace in RC drag racing.

Bottom line. If you are going to race a heads-up class, like Top Fuel Electric or Extreme, don't try to convert. Go with an electric chassis instead. If you are going to race an Index class or Bracket class, then a double reduction converted chassis can work for you. My 2cents. Hope this helps.

AC