motoriozed bicycle upgrades

Discussion in 'Motorized Bicycle General Discussion' started by motorbikes, Sep 10, 2012.

  1. motorbikes

    motorbikes New Member

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    I am new to motorized biking, What are the best ways to increase my speed i have a grubee skyhawk gt5 with a cns carburator? I also have a boost kit (not installed yet) but i did install a 36 tooth sproket.
    usflgusflg.xx.

    Tank you so much,
    any response is apreciated.
     
  2. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

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    The easiest and most effective way to wake these 2 strokers up
    is an expansion chamber.
    Check out the pipes from Sick Bike Parts and Arrow Motorized Cycles.

    Your boost bottle ain't going to do anything for your performance. Nobody
    is using boost bottles at the race track.
     
  3. JonnyR

    JonnyR New Member

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    a thatdax RT carb is a good choice with the expansion chamber also
     
  4. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    The boost bottle make a lot of imaginary horsepower.
     
  5. motorbikes

    motorbikes New Member

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    Is it even worth installing it don cine I have it will it stop some of the shaking or should I try and return it. Are shift kits a good idea? Is nos gonna kill my engine? Where do people race these and how fast do they race at?
     
  6. Nashville Kat

    Nashville Kat Active Member

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    How loud is an expansion chamber compared to a stock muffler?
     
  7. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

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    nos is in the same category as boost bottles. A gimmick that noobs
    waste their money on.
    Shift kit are a great way to always keep you in the power band.
    Check out the link in my signature.
     
  8. tooljunkie

    tooljunkie Member

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    boost bottles=ornamental horsepower,you can see it,but not really use it....

    a GOOD pipe and carb.
    i am not happy with the grubee tune pipe,seemed to make no difference.
    just a noisy hunk of chrome.
     
  9. motorbikes

    motorbikes New Member

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    I was also thinking about getting a electric hub motor for the front wheel to assist on starts and red lights as well as a light for the front. The thing is my parents wont let me get and m1 license but they will let me get an m2 now that i am almost fifteen and a half and almost eligible for my permit, i have to build the best possible motorized bicycle.

    What are your opinions about the electric hub idea? Is there anything to make this more like a motorcycle?
     
  10. culvercityclassic

    culvercityclassic Well-Known Member

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    I would go with the pipe and carb first. Jet the carb and you will see more performance for sure. I see you are local, that's cool. Member Wolfjr is around your age and knows a lot about the motors and performance upgrades...hit him up if you want some help.
     
  11. motorbikes

    motorbikes New Member

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    Who makes a better exhaust arrow motorized cycles or sbp. Who makes the best shift kit and carburator?
     
  12. Rocky_Motor

    Rocky_Motor New Member

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    There is no best. SBP is the most versatile and can be recommended by anybody who has used it. Not many members have gotten the arrow exhaust but I'm sure it's good too, but less customize able. The CNS carb sucks. thatsdax's RT carb is good, I like the semi auto choke. I heard the speed carb is good too. All require tuning more than likely.

    SBP makes the only shift kit that works right. I don't think thatsdax makes his anymore.


    You might consider getting thatsdax's GP50 clone motor. You'll get a **** of a lot of more power than these motors can ever make (without spending the equal or more amount of money). It will require more work to mount it though. You wouldn't have to bother with some electric hub if you were trying to go without a pedal start either. I personally don't think it's a good idea to make a hybrid bike as a first build. You mind as well buy the right engine for the job than mix and match things that will end up costing you a lot more.
     
    #12 Rocky_Motor, Sep 11, 2012
    Last edited: Sep 11, 2012

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