rear sprocket

  1. L

    Cutting rag joint in half...?

    Hey Everyone, This is my first post on the forum. I'm working on my first build and finally finished it up but realized my chain alignment was really bad and creating this "popping" noise. The only way I can see to bring the drive sprocket and rear sprocket into alignment is to thin the outer...
  2. J

    Bullet Train BT80

    Can any one who has the BT80 2 stroke bicycle engine kit give me some idea of what kind of max speed they are able to obtain and wheel size using the stock engine and stock 48 tooth sprocket which is what mine came supplied with even though the manufacturers manual states a 44 tooth.I get a max...