Gt5?

Discussion in 'Motorized Bicycle General Discussion' started by stv1jzgte, Feb 13, 2010.

  1. stv1jzgte

    stv1jzgte New Member

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    I got this motor yesterday its a 66cc Grubee starfire but does that mean its a Gt5, Just curious as its my first 66cc motor after 3 48cc's i figured id give 1 a try when or if my 48cc Grubee starfire dies.

    It has no squishband but does have a domed piston
    [​IMG][​IMG][​IMG]
     
  2. bairdco

    bairdco a guy who makes cool bikes

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    uh, i don't think it's a starfire. my clue is the big "skyhawk" sticker on the clutch cover...;)
     
  3. stv1jzgte

    stv1jzgte New Member

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    good point did mean skyhawk, so is it a GT5?????
     
  4. stv1jzgte

    stv1jzgte New Member

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    I had been loking at sykhawks and starfires all last night, must have had starfire on the brain. Yeh clearly its a skyhawk but i mistakenly wrote starfire i just thought someone here would see that and could tell me if its a gt5. Thanks anyway
     
  5. Tad Bit Tipsy

    Tad Bit Tipsy New Member

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    I thought the GT5 had a slant head. But I don't own one. If you check the grubee site its has good pictures of the GT5.
    Grubee Inc.
     
  6. Tad Bit Tipsy

    Tad Bit Tipsy New Member

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    Whoops sorry, I see that they have straight heads too. If its a 66cc then its a GT5. I say put it on one of your bikes to try out and compare. Bet you won't go back to the 49cc.
     
  7. stv1jzgte

    stv1jzgte New Member

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    Thanks for that Tipsy, I saw the slant heads and straight versions there but the pics are small and not to clear, im keen to see if your right compared to the smaller motors i do hope it turns the same rpm up top.
     
  8. Tad Bit Tipsy

    Tad Bit Tipsy New Member

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    I have a PK80 right now on my murray westport(heavy bike/ heavy rider). It has nice pickup through 7mph to 15mph+. Then once I get over 20mph I can blast it up to 35+ like a good motorbike should. It really opens up when you get rolling. My fastest speed so far is 46mph on a flat stretch. Its almost like a new beast, but I can only compare it to my friend's 33cc which is less than half my engine if you compare HP and Torque. Good luck and make sure you put on some bigger brakes, I've already upgraded to front disc. Still have rear pull, but will be adding a rear disc when I install SBP's shift kit. Hands down the disc brakes are better all around. L8R!
     
  9. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    I went to the site and my boots weren't high enough to wade through all the boo boo.

    EPA ban? He starts that crap every year!
    "Bad Boy" what makes the extra hp, the chrome goodies???
    not to mention some copyright infringement going on there..."super Rat"? Puh Leeze!

    Lotta hype and sizzle, little actual steak.

    The Model A? I bought several of those from livefast for 70 dollars shipped!
     
  10. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Be sure to include a note from your parents if you want to buy the badboy.
     
  11. stv1jzgte

    stv1jzgte New Member

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    Ya it took me 30min looking at all that shall we say propaganda, but action talks and bs walks, so far my 48cc skyhawk (sorry bairdco) is pretty damn good, i hope this bad boy lives up to its grubee rep. 3.5hp here i come!
     
    #11 stv1jzgte, Feb 14, 2010
    Last edited: Feb 14, 2010
  12. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    You spelled that one word wrong (rep.) the correct spelling is 'h-y-p-e".
     

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