Im trying to put on my expansion chamber exhaust on my new bike. Its the bolt on one from gasbike.net, the problem is the pedals get hung up on it so i cant pedal the bike. I went to a bike store to see if they had spacers for the pedals cause i've seen someone do that before but they said the crank wasn't american made and its all one piece so i'd have to replace the whole thing which would cost around 100 bucks according to him. Wondering what i could do or if there's the parts out there that I can do it myself. I attached pictures of what it looks like now. Thanks