2 or 4 stroke on an aluminum Giant frame?

Discussion in 'Frame Mounted Engines' started by Redneck in China, Apr 26, 2009.

  1. Redneck in China

    Redneck in China New Member

    I am wanting to put an 80cc 2-stroke (or maybe a 4-stroke) on an aluminum frame Giant mountain bike. I already have the bike but it's a full suspension so I want to swap all of my components over to a hard tail aluminum frame the dealer here has. The down tube is pretty fat though. I can't imagine how it would bolt on with just the stuff in an 80cc kit. I found this though at SBP:


    Has anyone used this? The photos are all from the same angle and there's no info on exactly what frame sizes it will work on so I'm having a hard time visualizing how this will work.

    Also, how important is the angle between the seat post tube and the down tube?

    And how tall does the seat post tube generally have to be to mount one of these engines?

    These are really cool engines. With all of the weird tube shapes, angles and sizes used today I don't know why no one makes a more universal mount. Or maybe I'm just missing something? What do I need to do to make this work on a Giant frame?


  2. linnix13

    linnix13 Member