It probably has a raleigh threaded bottom bracket. There are no replacements available, so you may have to keep the current chainset. https://www.sheldonbrown.com/raleigh26.html
@benjaminbunny started
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It probably has a raleigh threaded bottom bracket. There are no replacements available, so you may have to keep the current chainset.
https://www.sheldonbrown.com/raleigh26.html