Can a stripped out BB housing be rethreaded?
01-14-05, 12:49 PM
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Can a stripped out BB housing be rethreaded?
Can a stripped out BB housing be rethreaded? I was thinking a tap and die set or should I bring it to a machine shop to have this done? Can this even be done? Help.
This is on a all Steal Spinning bike. The first 1/2" of the housing is stripped,
BB size 68mm-107mm.
Manufacture of BB Modus bci1.37-24t.
Manufacture of spin bike Star trac.
Any help would be appreciated.
John
This is on a all Steal Spinning bike. The first 1/2" of the housing is stripped,
BB size 68mm-107mm.
Manufacture of BB Modus bci1.37-24t.
Manufacture of spin bike Star trac.
Any help would be appreciated.
John
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01-14-05, 01:13 PM
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Originally Posted by BostonFixed
It might work to try to tap it out tho the regular thread, but if that fails, then tap it out ot Italian thread, and use an Italian bb.
Thanks John
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01-14-05, 01:16 PM
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Originally Posted by BostonFixed
It might work to try to tap it out tho the regular thread, but if that fails, then tap it out ot Italian thread, and use an Italian bb.
Do you now where to find A CHEAP Italian bb Because the owner is a cheap a$s.
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01-14-05, 01:50 PM
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Shimano makes an Italian thread square taper bb for about $20.
01-14-05, 02:22 PM
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Originally Posted by BostonFixed
My name isn't john...??? WTF??
> at myself)
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01-14-05, 02:38 PM
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Mavic also made a BB that had no threads...not sure if it is still availabe. The BB shell had to be champhered to a 45 deg angle. The bottom bracket had a lockring on each side that squished it together so it would not move.
01-14-05, 03:12 PM
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Originally Posted by galen_52657
Mavic also made a BB that had no threads...not sure if it is still availabe. The BB shell had to be champhered to a 45 deg angle. The bottom bracket had a lockring on each side that squished it together so it would not move.
01-14-05, 04:14 PM
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you can use a sealed bb made for stripped threads ,the none drive side cup screws to the bb body i think the cheap ones are manufactured by VP but i am not sure
01-14-05, 04:17 PM
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i will find out for you tomorrow
01-14-05, 04:30 PM
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"Mavic also made a BB that had no threads"
Yst makes one as well, about twenty bucks thru biketoolsetc.com. No chambering required.
Yst makes one as well, about twenty bucks thru biketoolsetc.com. No chambering required.
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01-14-05, 04:33 PM
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you need to go to a bike shop that has a Bottom Bracket "chasing" tool, big honking tap is all it is... I have to say that if 1/2 the threads are gone, I'd go with a BB that doesn't require threads... I can't remember who makes them, but it's kinda like a problem solver thing... you've got a pretty standard BB sounds like so you should be able to find/order one from a Bike shop.. then you don't even have to worry about the threads any longer. I would just be worried if you did tap the threads, there would so little of them left that you'd probably just blow them out after a couple of spining class's... 
try and find that BB I mentioned, that's probably the best solution... good luck
try and find that BB I mentioned, that's probably the best solution... good luck
01-14-05, 04:57 PM
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cheaper to go the threadless bb way
01-15-05, 11:13 AM
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Thanks guys,
I'm going to look at some threadless BB. This seems to be the right direction to go. I'll update you of the out come.
I HATE SPINNING BIKES!
John
I'm going to look at some threadless BB. This seems to be the right direction to go. I'll update you of the out come.
I HATE SPINNING BIKES!
John
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01-15-05, 12:17 PM
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Originally Posted by Poguemahone
"Mavic also made a BB that had no threads"
Yst makes one as well, about twenty bucks thru biketoolsetc.com. No chambering required.
Yst makes one as well, about twenty bucks thru biketoolsetc.com. No chambering required.
This is what I found will it fit?
https://biketoolsetc.com/index.cgi?id...=YS-BB99368110
I could not find one with a 107mm.
Can I use a 110mm spindle length on a 107mm?
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01-15-05, 03:08 PM
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Can you, yes. SHould you, probably not. Especially on a Spinning bike. Just curious how you buggered up the threads to begin with. I maintain a fleet of 19 bikes, and I have never had any problems with the bb shells.
01-16-05, 12:16 AM
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Originally Posted by demoncyclist
Can you, yes. SHould you, probably not. Especially on a Spinning bike. Just curious how you buggered up the threads to begin with. I maintain a fleet of 19 bikes, and I have never had any problems with the bb shells.
Seeing that I've had this job for only two months and the bikes are from 1999 star-trac V-Bikes (junk), and previously owned by someone who couldn't keep toilet paper in the stalls. You tell me? Just trying to do my job here. It wasn't me who stripped the BB out.
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01-16-05, 09:37 PM
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Didn't mean to offend. Just curious. Sounds like someone did a swap at some point and cross threaded the bb when they reinstalled it. As for your question Sydney- I wouldn't do anything to mess with the chainline of a Spinner or any other group cycling bike. The chain runs inside a closed guard, and replacing the crank and cog are a pain in the butt, so you don't want to do anything to shorten the lifespan.
01-17-05, 08:24 AM
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Originally Posted by demoncyclist
Didn't mean to offend. Just curious. Sounds like someone did a swap at some point and cross threaded the bb when they reinstalled it. As for your question Sydney- I wouldn't do anything to mess with the chainline of a Spinner or any other group cycling bike. The chain runs inside a closed guard, and replacing the crank and cog are a pain in the butt, so you don't want to do anything to shorten the lifespan.
01-17-05, 12:36 PM
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I didn't mean to come on to you like that sorry.
I'm a bit pissed the guy who was riding it, said he felt the crank rocking when he got on it. Then he decides to use it anyway.
I'm a bit pissed the guy who was riding it, said he felt the crank rocking when he got on it. Then he decides to use it anyway.
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01-17-05, 12:41 PM
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Your right about the chainline the plastic chain guard has good size gouge in it from the chain.
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01-18-05, 01:06 PM
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Anybody got a link to YST web site?
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