Devon, thanks fur yer input,,,, the C models an the A models are the exact same engines an bike basically, the only difference is the body work...I weigh in at 250 lbs.an am 6`5"...its on the second setting, also ma question was how do you rotae it around to find the next notch to harden the preload an spring..... ave now found ma light goes out when ye click it intae gear, only in neutral does it come on, but again a dont know if this is normal..??? how long ye had yours. this one has 2500 miles on it, am also lookin fur a louder an more throaty pipe, can ye recomend any, a wat it tae sound more like a Motorbike something wi a bit of a growl, but not over the top.... like an open pipe does... a have a laser produra race can but no intermediate pipe, , so am lookin fur recomendations an a n a link pipe tae suit the produra pipe, that pipe will also fit the loud can an the street can....dae ye know of any....John...Thanks.