26TPI bottom bracket

[mdvineng]

It really depends on your crankset.
Adding 3mm makes sense but the spacing offset be different, as some bb's are asymmetric some are symmetrical.

 

[bagpuss]

Mate is wading throught his spares as I type this .

 

[keithglos]

The old Raleigh bottom bracket shell you have was only wider because the RH cup was screwed inside the edge, whereas standard RH bracket cups had a shoulder.
I have no idea how this affects axle length.
Keith

 

[Nieky]

Mate is wading throught his spares as I type this .

Cheers, fingers crossed!

 

[bagpuss]

Right , He may have, I will need to make sure his eye sight ia worst than mine ! . I will go and look tomorrow and pick two up together with the right lock ring if they are 26 tpi .

 

[Nieky]

Right , He may have, I will need to make sure his eye sight ia worst than mine ! . I will go and look tomorrow and pick two up together with the right lock ring if they are 26 tpi .

Thanks, that is much appreciated.

 

[Midlife]

Are you certain it's a Raleigh and not ISO thread?

 

[Nieky]

I tried an British bb and it didn’t thread in more than 1/3rd, rough count indicates 26 TPI, but there is also minor damage to threads. Want to try a 26TPI before going threadless.

 

[bagpuss]

I have 4 cups 2 pairs that might do the job . Checking the threads tomorrow with bros thread gauge .
Noticed you said minor damage to threads . Have you thought about taking it to a lbs and ask them to run a thread cleaning tool through each side . I might make all the difference . NB . Tell them you think it might be 26 tpi first .

Pm me ypur detals and I will mpot the cups to you if they are the right thread .
Had loads of these a while back and together with axles I weghted the lot in for scrap !!

If the ones I have are wrong have you seen these .
https://picclick.co.uk/26-TPI-Bottom-Bracket-Cups-For-Classic-Raleigh-142922483951.html

 

[Nieky]

I have 4 cups 2 pairs that might do the job . Checking the threads tomorrow with bros thread gauge .
Noticed you said minor damage to threads . Have you thought about taking it to a lbs and ask them to run a thread cleaning tool through each side . I might make all the difference . NB . Tell them you think it might be 26 tpi first .

Pm me ypur detals and I will mpot the cups to you if they are the right thread .
Had loads of these a while back and together with axles I weghted the lot in for scrap !!

If the ones I have are wrong have you seen these .
https://picclick.co.uk/26-TPI-Bottom-Bracket-Cups-For-Classic-Raleigh-142922483951.html

Thanks, much appreciated, PM on the way.

Yes, last week I spoke to LBS recommended by someone I trust for that. They regularly refurb vintage bikes and will to thread cleaning and BB shell facing. Frame will be going there once I have all the bits together. Unfortunately they can’t do it while I wait as too busy. I will also be asking them to clean the fork thread.

I saw the eBay listing and contacted the seller. He has mis-listed the cups, and hasn’t got a pair. Too bad!