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.
( Not knocking the shorter rides at all. 50km is still a long way on a bike and deserves much respect. I'll just warn you that long rides can be addictive, in no time you'll be doing distances that most people think are inhuman.) ("you" being the OP, not Oliver or TSK who already do silly distances...)
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.
( Not knocking the shorter rides at all. 50km is still a long way on a bike and deserves much respect. I'll just warn you that long rides can be addictive, in no time you'll be doing distances that most people think are inhuman.) ("you" being the OP, not Oliver or TSK who already do silly distances...)