How to measure correct chain length?

[ibie1983]

(05-28-2013, 12:05 PM)nfmisso Wrote:  Shimano and SRAM's recommendation is to wrap the chain around the largest ring and largest cog, round up the length to the next full link then add one inch - which is exactly the same as Alex suggests.

I have always followed this procedure and never had any issues - over almost a dozen different bikes, some single, some double and some triple chainring.

Hi Nigel

Thanks for your reply. I take it when you wrap the chain around the biggest chainring n cog to work out the chain length, you bypass the rear derailleur just as Alex suggests? I have a Sram derailleur by the way if that matters.

Thanks