There was a British Writer and TV presenter on the Tube , Tom Vernon ,
BBC replayed by PBS in the US.. in the past..
using the show series title of just that "fat man on a bike "
http://en.wikipedia.org/wiki/Tom_Vernon
Local festivals and food a common theme.. they were well produced shows.
I commented at seeing the shows 'It's amazing how lightly you can pack
when the Camera Crew carried all your gear.. '
Any how .. Your Bike is probably fine , get the inner most 3rd gear on the crankset
as small as will fit.
If the going gets too much, heart-rate uncomfortably high, I get off and walk the bike ..