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  1. #1
    Dolce far niente bigbossman's Avatar
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    Found this at a thrift shop - worth anything?

    I stumbled across this little GT Mach One BMX bike in a thrift, and bought it on a lark. It is made from 4130 chromoly, and seems to be a quality built bike. The trouble is, I know nothing about BMX bikes. It looked cool though, and for $5.00 I took a chance.

    How'd I do? Any idea how old or good it s? Might it be worth something, or was in a thrift shop for a reason?

    John D.


  2. #2
    Senior Member Brian's Avatar
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    I've seen kids race on worse bikes. I'd say you got an excellent deal, but $5 is awfully cheap. Have it checked out by someone in the know, and then ride the crap out of it. If you're not gonna ride it yourself, or don't have a future champ running around your house, give it to a neighbor's kid, or some needy kid, and reward yourself with a bit of good karma. Since it was so cheap, do a good deed instead of turning it over for profit. Sorry to be preachy.

    Now, on to your questions. I don't know much about BMX, as they've changed the rules since I last rode one 20 years ago. I do see what looks like a threadless headset, 3 piece cranks, decent pedals, and the red brake makes me think it's probably a Shimano DX. Doesn't help with the age, but that's decent spec, and certainly not an entry level bike.

  3. #3
    Senior Member BMXTRIX's Avatar
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    Yeah, you got a deal. I am not very bmx (racing) knowledgable for specific bikes, but the cranks look to be tubular, the included chain tensioners look solid, and the 4130 sticker may mean a full chromoly frame.

    That bike was no less than $200.00 new, but that may even be closer to $300 or more new.

    The wheel set is the only thing that looks a little bit lacking to me, but it is hard to tell from the photos.

  4. #4
    The King of Town manboy's Avatar
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    Good job, now blow up some trails.

  5. #5
    bmxracer
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    sweet!!
    last minute breakfest at WaWa......$2
    answers to last nights homework you forgot.......$2
    school lunch without a cookie.......$2
    finally escaping the crap in which everyday holds to get out on your bike.......priceless
    --------------------------------------------------
    that's life, this is BMX

  6. #6
    Came Up!
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    the wheels are mx22's, and probably unsealed, but for 5 bucks, thats a deal.

  7. #7
    Dolce far niente bigbossman's Avatar
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    Quote Originally Posted by bmxrdr88
    the wheels are mx22's, and probably unsealed, but for 5 bucks, thats a deal.
    I just wiped the dirt off the wheel label - it reads "Wienmann ZNCX"

    Thanks for all the replies!!

    John D.

  8. #8
    Senior Member
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    i heard that profile designed the gt cranks . if those are the ones then they would be worth alot.

  9. #9
    Senior Member BMXTRIX's Avatar
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    No, those aren't the Profile ones. The Profile ones look (and are) exactly like the current design of Profile cranks and do not have a pinch bolt. But, those look like halfway decent tubular chromoly cranks... maybe WITH a sealed bottom bracket?

    For five bucks, who gives a damn?

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