Originally Posted by
SpasticSprocket
Woah, a lot of stuff involved in buying a set of spokes.. I think I'll probably take the advice of bringing it into a shop.
I looked up one of the 27" rim charts provided with a spoke length calculator.
ERD varied from 609-622mm.
That in itself means the spoke length could vary by 13/2mm just from possibly different rims. Add in the possible variance between different hub flange diameters and the number of crosses and......
IF you have the actual spoke in hand, you have the best reference.