Originally Posted by
prj71
You haven't mentioned what is holding you back from more than 60 miles.
As mentioned above If you can do 60 you can do 100. Most of what will hold you back is more mental than physical.
Mostly I feel physically exhausted, the energy is not there and I start to slow down noticeably, going uphills is a dead block after 50, just don't have the strength to do it. Having said that I haven't really pushed beyond 50 this year. But plan to do 55 this Sunday. Let's see how that goes.