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  • nope but BB90 has maxed out the shimano axle length .. I think the pre-load bolt engages less in it than BSA.

    Is it axle based rather than BB interface then?

    What is SiSl then?

  • What is SiSl then?

    144 or 141.5 if you use the old axle with the new arms - and the arms don't mash your chainstays up.

    7900 is nearer to 150 apparently - and doesn't have as good a heal clearance as a BB30 crank.

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