Determining correct chainline for build...

Posted on Tue 20th, February 2018

• #1

baileyswalk

I have a genesis day one frame I was going to run fixed for some commuting and light off-road duties.

I have a philwood sprocket and I was going to run a Miche advanced crankset up front.

The day one has a 68mm BB shell, 135mm rear dropout spacing and a 47.5mm chainline (so I've been told) and the Miche chainline is 42mm with a 107mm BB (so I gather...).

So... with a difference of 5.5 on the chainline I need a BB 11mm bigger, a UN55 118mm in other words?

Is this correct in theory? I've never had to do this before.
• #2

Thrasher

https://www.lfgss.com/conversations/130300/?offset=950#comment12996288
• #3

baileyswalk

Cheers thrasher, have posted in there.

Admins - delete if you will

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