39-26 front, 12-36 cassette - what cage length? Thought medium was needed, but wiggle say 36t cassettes need a long cage. Is it really important to get it right?
Googlefu not helping - I basically want Mr Sram to tell me what to get, and I can't find it.
Apologies also, as this probably breaks the "only one thread about cage lengths on the front page at any time" rule.