• thanks, my plan is to modify a bit the right crank arm, but I'm more worry about the chain line than the chainring compatibility.

    Any chain line issue ? In the thread mentioned by @umop3pisdn someone said that the chainline goes to 46mm.. Is that right ?

    Usually track crank chainline is around 42.5mm, maybe a simple spacer between the hub thread and the freewheel could do the trick ?

  • someone said that the chainline goes to 46mm.. Is that right ?

    I think it's more like 47, depends a bit on which chainring you use

    Usually track crank chainline is around 42.5mm, maybe a simple spacer between the hub thread and the freewheel could do the trick ?

    You're unlikely to fit that much packing behind a sprocket and still have enough thread engagement. Since all my fixie bieks use road cranks, I just rebuild my hubs to suit with customised axle parts.

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