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Old 11-11-10, 02:14 PM   #1
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Raleigh 26 tpi BB question

Hello all,

I was wondering if any of you have experience using threadless bottom brackets with the older Raleigh 26 tpi bottom bracket shells (mine is 71mm).

Sheldon Brown's site says that the threadless BB from Velo Orange works and their site confirms that as well. What I'm wondering is, can I use something like this instead to save some money?

I'd rather avoid retapping the shell or anything else time-consuming if I can avoid it. It seems like a threadless BB is the easy way to go.
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Old 11-11-10, 02:32 PM   #2
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It will not fit. Your BB is 71 and it make for 68 MM. you be better off with the one from Velo Orange.
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Old 11-11-10, 03:23 PM   #3
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Plus, I think the edge of the BB shell needs to be chamferred to accept the bevel on the BB. Takes a special tool. Otherwise it tends to wobble and loosen up. I looked at one of these as a replacement for my Raleigh 20 BB. The solution I used was to just grind a few rows of threading off a standard UN54 BB, leaving only 3 intact rows on each end. Then it threads in nicely. I had to face the BB shell by 3 mm though, to get the width to fit. All done with a file and a steady hand.

Last edited by cycle_maven; 11-11-10 at 03:27 PM.
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Old 11-11-10, 03:38 PM   #4
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Check with Phil Wood Co. they may make mounting rings in the right size.
as they don't use the edge of the shell the width difference is also not an issue.
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Old 11-11-10, 04:01 PM   #5
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I'm not certain what your priority is here, whether
to install a sealed bottom bracket cartridge or
to maintain your Raleigh BB with minimal investment?

I just converted a 70's Super Course from cottered
steel to alloy cotterless by swapping out the axle
with a 5 series Sugino that was lying around the
Bicycle Kitchen and using the existing cups.
Worked out pretty well, but I admittedly have
access to a lot more miscellaneous junked parts
than the average person.

I've never used a threadless BB, so will not
presume to offer advice in that regard. When
I was internet shopping the alternatives for
the Super Course project, I saw somewhere Raleigh
threaded mounting rings for sealed BB -- might have
been Phil Wood, might have been Velo orange on the
Harris Cyclery website. Check and see what
they (Harris) have available on the page they devote
to BB stuff.

Mike Larmer
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Old 11-11-10, 06:37 PM   #6
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Niagara does not give any information on that BB. I vote form the V.O. $60 is not alot for a decent BB esp on like this. it will not however work with Campi cranks
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