Gear inch/ratio question

(don't want to hijack the thread, but I'm not allowed to post new yet)

...but I think I'll ditch the brakes all togehter on the fix. What would you guys pick for going around london brakeless on a daily basis?

option 1. see http://www.londonfgss.com/thread9446.html

option 2: have someone document your experience here

option 3: if this hasn't put you off, then ride 50 GI.