Audax rides

Thanks for your replies,

Way too short for me, sorry. ;)

:)

I've done that for Brazier's Run 100 the last couple of years. A 5am start to quickly knock off the 75km to the start, do the 100km ride and then ride 75km home again. Home just before 7pm, quick bath and off out to the pub.

Hi greenbank, I have heard you do lots of long rides. I am currently riding in London on 48/15 with brakes do you think it would be silly to attempt this ride on this gear ratio?

What sprocket would you suggest me to add to my fixed-fixed hub? I was thinking something like an 18/19 tooth..