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  • Shimano SL-6400, 600 Ultegra (7sp)

    Will it work with an 8 Speed Shimano rear der. , and 8 speed Shimano cassette? Or will it run out of clicks and not reach the full range of the cassette? Ta!

  • will it run out of clicks

    Yes. If you're building a period correct bike, you need to find SL-6401, otherwise the current SL-R400 will do.

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