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Unknown Haro bike frame

Old 02-28-16, 04:19 AM
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Unknown Haro bike frame

I have this baby blue haro frame i received for free and i built i bike out of it. One problem, I have no idea what kind of frame it is and apparently according to the local bike shop it has a special type of bb bearing. They said it was called " American Threaded " but when they got me a pair of bearings the package said " Haro Isis Bottom Bracket Kit ". I would like to know if any one knows what the frame is and what kind of bb bearings it uses.

Here are the pictures: https://imgur.com/a/G0rjU

Last edited by Logan H.; 02-28-16 at 04:29 AM.
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Old 02-28-16, 03:48 PM
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2005 Haro Mirra 540 - BikePedia

https://importsnc.com/forums/sanford-...a-540-air.html

Nearly certain that's a 2005 Mirra 540 air frame. Not sure about the bottom bracket, but it almost looks like the black thing in there is an aluminum insert to convert an American BB to a threaded, euro BB. Why? Who knows, maybe so goofy footers can mount their cranks either way for LSD drive trains?

Is the BB threaded? Euro BMX threads are 'English' BB threads for the rest of the bicycle world. Any shop worth their salt should have a BB to test fit and try to thread in.

Good luck.
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