Frankfort MB's
Well-Known Member
I was going for a ride the other day and with a heavily ported and port matched 66/80cc engine from gasbike.net... I've built several of these MB's but none modified this way and this bike I was able to get up to 33mph and it was still climbing but that little 2 stroke was hitting the major RPMs so I backed off.... This bike does have 44 tooth sprocket, I also have a 41 I thought about putting on it since some of the guys near me tend to have drag races lol...