Boomerang89 30 Posted January 19, 2022 Hi, I bought a Mighty Ballista roller. It is one converted to electro. Just wondering what pinion to use in this car? Internet meanwhile gave me a TNS expert manual but as that of course is with nitro engine it isn't giving info on a pinion. Any tips welcome. Share this post Link to post Share on other sites
Boomerang89 30 Posted January 21, 2022 so for this one Share this post Link to post Share on other sites