This is probs true but if you are poor / lacking space like me and have to use fixed for everything then put on 70+ yes its a little slower off the lights but lower than that if you leave anything but central is so frustrating.
Isn't this why the flip-flop hub was invented? I'm running a 49t chainring with a 20t cog (66") on one side and a 18t on the other (73.5") then a set of track wheels with a 15t cog (88.2").
For the winter I've leave it with 66", I find it perfectly useable outside of central London: an average of around 95 rpm gives a speed of 30 kph, which I very rarely average above on a normal ride.
Isn't this why the flip-flop hub was invented? I'm running a 49t chainring with a 20t cog (66") on one side and a 18t on the other (73.5") then a set of track wheels with a 15t cog (88.2").
For the winter I've leave it with 66", I find it perfectly useable outside of central London: an average of around 95 rpm gives a speed of 30 kph, which I very rarely average above on a normal ride.