The threadless BB are normally used when there’s damaged threads they have British threading so don’t suffer the loosening found on French threaded BB’s ( although I never experienced this loosening)
Could you please recommend a combination of threadless BB and crankset that would give me an ideally straight chainline?
Depending on your frame /crankset you’ll need to find the correct length BB
@user116436 started
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The threadless BB are normally used when there’s damaged threads they have British threading so don’t suffer the loosening found on French threaded BB’s ( although I never experienced this loosening)