Well, you should have more HP and your bike should get at least 40 ish MPG. I'm probably one of the biggest guys here and I just calculated a refill on my Black and it worked out to 51mpg. I was amazed as my bike is pulling a lot of weight and although I don't hod rod all the time I do have a fun time getting up to speed as fast as I can. I've got he AI removed and TORs (Triumph Off Roads). Not even sure my carbs have been rejetted. But it starts and runs just fine. Has never missed a beat.
