Flipping a BB around????
09-05-06, 09:10 PM
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Flipping a BB around????
Ok so I have a truvativ gigapipe BB and have to use a 10mm spacer to make the BB work. Becasue of that huge spacer I can only really run the 4/5 smallest cogs. So I know I can't just put the spacer on the nondrive side of the BB because it just does not fit. So I was thinking I could just flip the whole BB around and have the spacer on the left side, and correcting my chainline. The only thing I guess i couldent do is use a BB mounted chainguide but that does not matter. So is this possible/safe???
09-05-06, 10:26 PM
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You can't flip a standard English/ISO cartridge BB around because the threading of the two sides is different: the right side is left-hand-threaded while the left side is right-hand-threaded (the normal way). This is to prevent precession from loosening the BB cups over time (you can read the details on Sheldon Brown's site) and is a superior design. If you had a CUP-AND-CONE BB you could flip the spindle, while leaving the cups in the same place, but those are more or less obsolete for other reason.
The spacer won't work on the left side because it's threaded for the right side. It sounds like you have a BB that's seriously mismatched in length. Why can't you just remove the spacer altogether? As far as I know, the gigapipe BBs are just standard ISIS BBs... you can get a new ISIS BB in the right spindle length for about $20 from Nashbar.
The spacer won't work on the left side because it's threaded for the right side. It sounds like you have a BB that's seriously mismatched in length. Why can't you just remove the spacer altogether? As far as I know, the gigapipe BBs are just standard ISIS BBs... you can get a new ISIS BB in the right spindle length for about $20 from Nashbar.
09-06-06, 08:20 AM
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Yeah, that's what I'm wondering too. Why do you need the big spacer if it has you spaced out too far?
09-06-06, 08:56 AM
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Originally Posted by moxfyre
You can't flip a standard English/ISO cartridge BB around because the threading of the two sides is different: the right side is left-hand-threaded while the left side is right-hand-threaded (the normal way). ...
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Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
09-06-06, 09:15 AM
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Originally Posted by John E
Of course, one can reverse just the cartridge itself, IF the cups are separable, as on many Campag. and Phil Wood units.
09-06-06, 12:32 PM
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Oh wow, I totaly forgot the right side is left hand threaded. Guess it not going to work.
As for just removing the spacer that wount work either the BB is a 128 spindle and I need a 118
As for just removing the spacer that wount work either the BB is a 128 spindle and I need a 118
09-06-06, 01:51 PM
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Originally Posted by FreeRidin'
As for just removing the spacer that won't work either the BB is a 128 spindle and I need a 118
09-06-06, 03:29 PM
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Originally Posted by HillRider
Then why not get the correct one?
09-06-06, 04:40 PM
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Originally Posted by John E
Of course, one can reverse just the cartridge itself, IF the cups are separable, as on many Campag. and Phil Wood units.
!ed rader
