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  • I wrote down different ratios a while ago when trying to work out what single speed to try. I didn't have that combination but 56/14 would be roughly 66.4 (the same as 48/12). 57/14 would be slightly higher and anyway, you will have tried it by now.

    54/11 81.5
    52/11 78.5
    50/11 75.5
    48/11 72.5
    46/11 69.4
    44/11 66.4
    42/11 63.4

    54/12 74.7
    52/12 72.0
    50/12 69.2
    48/12 66.4
    46/12 63.7
    44/12 60.9
    42/12 58.1

    54/13 69.0
    52/13 66.4
    50/13 63.9 98L S-RF3 main
    48/13 61.3
    46/13 58.8
    44/13 56.2
    42/13 53.6

    54/14 64.0
    52/14 61.7
    50/14 59.3
    48/14 56.9
    46/14 54.6
    44/14 52.2
    42/14 49.8

    56/15 62.0
    54/15 59.8
    52/15 57.6
    50/15 55.3

  • Went to fit the stuff last night and realised the 14t is a 3 lobe cog not the 9spline I need.

    Oh and it was also a 13t!

    14t 9 spline on order.

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