Looking to buy a new front disc as i am currently learning to gap to front wheel but i dont have alot to spend. im hopeing to get a bb7 but i wasnt sure if there was any difference in proformance between the bb5 and the bb7 ive heard the bb5 is just as powerfull as the bb7, but the bb7 is easier to set up. some of you mite have more experience with discs than me. cheers