• Bottom bracket is making ominous groaning sounds. Needs a rebuild. And now I discover that my Stronglight 49D cranks use a proprietary extractor threading with 23.35x1.0mm threads.

    Does anyone have one at a sensible price that they'd like to sell me? If not, does anyone have one that they'd like to lend out?

    While I'm at it, does anyone have a TA crank extractor too? I've got another bike with old TA cranks on too, and they also have a proprietary thread (23mm).

    Thanks.

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