measuring rear drop outs

cartesr
cartesr Posts: 70
edited August 2007 in Workshop
Ive thinking of setting up a fixed bike for the winter. Ive read a lot of about suitable width between the drop outs, and various measurements of 120mm 130mm 135mm etc.

Obvious question perhaps but how do you measure the width between the drop outs is the measurement taken the inner distance between the actual drop outs or the outer distance

cheers
I used to do a bit meself you know

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