stock 5 horse motor

Discussion in 'Motorized Bicycle General Discussion' started by WildAlaskan, Oct 10, 2010.

  1. WildAlaskan

    WildAlaskan New Member

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    look at these sites they have stock 66cc motor kits and two are even the same kit but have big difference in rated horsepower

    the first is a kings motor bike kit its rated power is 2.75 GRUBEE 2010 SkyHawk GT5 66cc/80cc Slant Head Bike Motor Kit (Standard Finish)

    the second is a bikeberry kit it is the exact same kit even the same price but they claim a 5-6 hp rating

    the third is a zone8 kit advertized at 5-6 hp its not a grubbe but still a nameless brand with higher performance sounds a little fishy to me Bicycle Engine Kits 50cc and 80cc

    while pirate cycles has yet another 2010 grubbee kit yet it has been rated at 2.75 hp New 2010 Grubee GT5 w/ Angle Fire Head and Race Carb Standard Finish

    i dont think i will be doing business with websites who try to intice you in with more power for the same dollar but are really delivering the same product its a act of dishonesty pure shame
     
  2. Nougat

    Nougat New Member

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    The HP ratings come from the factories in China. Disregard all of them, high, low, or in between. Until you put your bike on a dyno, you have no idea what the HP rating for your motor is. These engines are so small that small adjustments like fuel ratio and spark plug gap and ambient air temperature will have dramatic effects on engine power.
     
  3. WildAlaskan

    WildAlaskan New Member

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    i am more inclined to believe a stock perfomance to be the lower hp rating of 2.75 maybe increase after break in but better increase with poritn timing adjustments and bolt on performance enhancers but i would find it hard to believe that a stock motor produces anywhere near five horse
     
  4. oldtimer54

    oldtimer54 Member

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    It tells more about the venders then the motors.
     
  5. curtisfox

    curtisfox Well-Known Member

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    From what I have read on these sites I would stay away from Kings very poor service
     
  6. WildAlaskan

    WildAlaskan New Member

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    indeed that was mostly my point
     
  7. noco

    noco New Member

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    hey dont slam the venders that pay for this site!!!!! i think the horse power variations depends on the size and age of the horses in china
     
  8. Goat Herder

    Goat Herder Gutter Rider

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    There little short Chinese horsesrotflrotflrotfl
     
  9. BarelyAWake

    BarelyAWake New Member

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    "Short horse" lol noice :p

    Honest feedback is worth so much more than an ad slot :)
     

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