Originally Posted by
noglider
I'm not sure I'll survive Hillier Than Thou. If I don't, it's been nice knowing you folks.
Good on you for signing up for that ride. The graph here:
Hillier than Thou Course - 101.6 mi mapped course on MapMyRide
makes it look like its a lot of short and fairly steep stuff. The course profile looks like what my heart rate would be during the event.

Do you know how much total climbing for the day?
Edit: Am thinking that I'd prolly be whacked using my 39x27 and would have to throw on the compact crank to get the bailout gears.