ATR have built some of the fastest engines in North America. Head milling, porting, cam degreeing, big bore kits, whether 2 stroke or 4 stroke, we can get you the performance you want.
We got our first DynoJet dynamometer in 1996, making us one of the first. Now on our 3rd dyno incarnation, which is loaded with digital weather station, load control, air/fuel meter, “tuning link” and matched with our countless years of experience means nobody tunes a motorcycle better than us.... NOBODY! Get the most out of your aftermarket parts, whether it’s custom fuel injection maps or jetting carburetors (yes, we are old enough, we grew up with carbs), ATR have the knowledge and equipment to do the job properly. Sport bikes, cruisers, HD’s, all welcome.