Removing 2 tubes from Dyno Gt Frame !!??? ....will it hold ?

Discussion in 'General Questions' started by chain, Aug 15, 2015.

  1. chain

    chain Member

    Hey all . Ok I got a Dyno Gt Deuce . I just got a Sachs Moped tank that will Look and Fit
    Awesome ....if...I can remove the 2 rails that attach after the weld In front of the seat post that connect
    to the front down tube . Just not sure because I see a lot of bike with out these rails so I think it should be strong enough IMG_7993.jpg 1 tank .jpg
    Any thoughts ??

  2. butre

    butre Well-Known Member

    I would have to suggest finding a frame not as sought after as a dyno
  3. chain

    chain Member

    Hey Yea I know Im really torn , I love the bike but just wont work and I don't want a in frame tank cuz it's not going
    for the track bike thing .
  4. The_Aleman

    The_Aleman Active Member

    Those twin tubes are part of the cantilever. If you remove them, you'll likely make the rear end noticeably more sloppy. It'll "wag" under power and/or in tight turns.

    You might be able to get around that with proper bracing, but I have to agree it'll be a real shame to hack up that wonderful frame.
  5. chain

    chain Member

    Hey. so what makes you think that? I looked at the girls model and the seat stays end at the seat tube . Also most bikes dont even have those extra center bars . I will be reinforcing the frame with welding it before the seat tube . I relies a lot of Dyno lovers will hate me doin this but I think it will work . LOL man a lot of people don't want me doing this to that bike just cuz of the bike lol .
  6. The_Aleman

    The_Aleman Active Member

    The open frame aka "step-through" versions of bicycle frames have nowhere near the torsional rigidity of closed frames.

    I've experienced this first-hand. I've never motorized a "girl's bike" but I have pedaled many miles on a wide range of bicycles and tricycles.

    Cantilevers on frames contribute to how the rear end reacts to riding surface. Weak cantilevers have been known to snap a few inches behind the gooseneck.

    You want to remove most of the cantilever? Go right ahead. It'll probably be another bad idea in a long string of them that pop up on these forums.
  7. chain

    chain Member

    Dam it I hate when people .........Make Sense .....when it don't agree with my idea !! I guess I still think most don't have that cantilever frame like bmx bikes and such... and i'm only riding it on flat road really . My jump days are over .
  8. chain

    chain Member

    IMG_0380.jpg Decided to Heat and bend . fits like a glove ..
  9. gary55

    gary55 Active Member

    Good lookin bike, and good choice to not butcher that frame. I'm trying to get a in frame tank from Ghettobikes for the two moto glides I have, But so far no returns to my e mail requests. Guess they are really busy. The only weak spot I have found so far on this frame is the welds where the kick stand attaches to the frame. I had to re weld it and welded a gusset at the front of the mount 45 deg. to the bottom of the frame to keep it from wanting to rotate forward. It will be a lot easier to beef up this connection before the bike is built.