My 66cc engine, with new expansion champer

Discussion in 'Photos & Bicycle Builds' started by DanielMaia, Mar 28, 2011.

  1. DanielMaia

    DanielMaia Member

    Hi there guys,

    Some pics of my motorized bike 66cc, with 2900km on it, new expansion chamber




  2. TheStrayMule

    TheStrayMule New Member

    Wow, this is really sharp :D
  3. kansasmike

    kansasmike New Member


    what kind of changes has it made .
    any louder
    top end some what faster.
    I am thinking i should get one .
    Last edited: Mar 28, 2011
  4. DanielMaia

    DanielMaia Member

    Its my first prototype, and from my first 35km, i can say its designed for high rpm power.

    Up to 37, 38km/h i dont notice a big improvement, but past 40km/h, it pulls like madness
  5. Lazieboy

    Lazieboy Member


    Cool ride. Do you see or hear of others in your area who have MB's.
    I had that same kickstand and seem to bend, now i got bi-pod kickstand from walmart $20 Me likee.
  6. Lazieboy

    Lazieboy Member

    So is it quieter or louder you think.
  7. DanielMaia

    DanielMaia Member

    Stock is always a quite quieter, but is not very loud, i think the soud its perfect for a plenty ride :)
  8. buzbikebklyn1

    buzbikebklyn1 New Member

    I like the left side mid mount and the zig zag under the seat... very innovative... I think ill have to try it.
  9. DanielMaia

    DanielMaia Member

    Yeah, its really nice the sound came off just next to my butt :cool2:
  10. RedBaronX

    RedBaronX Member

    yeah, no one will notice when you fart :whistling:
  11. DanielMaia

    DanielMaia Member

    Ahaha :D

    Im going to make a video, to you guys see the beatifull sound of this bad *** exhaust :D
  12. YaJony95

    YaJony95 New Member

    Daniel Maia :D You, here?? :D
    Your bicycle is really amazing! Off-sure, a Portuguese only can be amazing :D heheh Joking :D
    Congratulations for your bicycle :D You deserve it! :D
  13. jaguar

    jaguar Well-Known Member

    Lengthen the pipe leading to the chamber if you want the pipes resonant frequency to be more in step with your engine.
  14. ken murphy

    ken murphy Member


    Heres the best pipe I put together,the pipe on the schwinn is the best one yet quite fast.

    Attached Files: