velomaniac
MacRetro Rider
Been SS for 10 years at least and still haven't got the hang of 2:1 ratio despite the claims its the best all round. I'm happiest on 1.75:1 or 28/16 which means i'll spin out faster but I'll get up more hills. Bigger rings though give more tooth to chain wrap which is good when you fit types are laying down the power 
