• Why does the 42mm chain line give very limited chain ring size? The width of the tyre being used and spacing of rear hub will determine the minimum chain line, but then you should be able to pick any crank set you like and just get a wide enough bottom bracket to make it work. I can't figure out how a different frame would change the equation here.

    I'm looking at my Crosscheck now and got to say I love it.

    Also why do you need to run a wide rear hub in the Crosscheck? You can use a standard 120mm rear hub spaced out to 135 so should give you a standard chain line and don't think the BB or stays will stop you running a big chain ring on a standard chain line.

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