40 mph to 42 mph with a 44 tooth rear and a 26in tire on flat ground..... but it took a lot of porting and port map corrections and differant intake setups to get it there, in the end i found that the highest top speed can be obtained with a 3.5 ft 1in od strait pipe with no muffler ! it screems up in the rpms and make rediculuse power there but lacks any low end LOL a simple exhaust swap from the tunned high rpm strait pip to the snake pipe x chamber and it becomes a verry broad powered midrange bike great for high speed street cruiseing and tops out at 35ish but has loads more power everywhere
