Need Help - upgrades for my single speed and rebuilding an old raleigh grand prix
06-04-23, 06:59 PM
#26
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I've been down the vintage Raleigh 71mm 23 tpi bottom bracket shell road myself. I tried the 68mm Sunlite threadless universal bottom bracket but that 3mm made a big difference. I didn't feel that the non-drive side of the bottom bracket grabbed enough threads to be secure. Perhaps this is why yours keeps coming loose. I ended up polishing the minor pitting out of the original cups and found a square taper spindle that gave me a good chainline. It's been performing beautifully.
06-04-23, 07:37 PM
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If you use Loctite RED, you will never again be able to remove it to service the bearings. A better choice would be Loctite BLUE.
06-05-23, 06:27 AM
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I tried the 68mm Sunlite threadless universal bottom bracket but that 3mm made a big difference. I didn't feel that the non-drive side of the bottom bracket grabbed enough threads to be secure. Perhaps this is why yours keeps coming loose. I ended up polishing the minor pitting out of the original cups and found a square taper spindle that gave me a good chainline. It's been performing beautifully.
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