I'm on 49/16 which is 80.5GI, can't skid when going fast but the front brake is there for any emergencies. I really like the speed I can pick up and the uphill battles, thank god there isn't many hills between east and west London.
I'll try out 49/17 for 75.7GI soon, but I'm only getting 35 miles in a week at the moment due to study.
I'm on 49/16 which is 80.5GI, can't skid when going fast but the front brake is there for any emergencies. I really like the speed I can pick up and the uphill battles, thank god there isn't many hills between east and west London.
I'll try out 49/17 for 75.7GI soon, but I'm only getting 35 miles in a week at the moment due to study.