I bonded with my 2001 Litespeed Tuscany (all Ultegra) during the summer of 2003. It has 53/39 chainrings and an 11-23 nine speed cassette.
I got my 2011 Specialized Tarmac Elite (SRAM Apex) 4 months ago. It has 52/36 chainrings and an 11-28 ten speed cassette.
I've set up both bikes so they are almost identical (saddle to handlebar, saddle to center of crank, knee over pedal axle, etc.).
When I do my typical 35 mile ride on the Litespeed I come home refreshed.
The Specialized is lighter and has more gears but when I do the same route on the Specialized I come home whipped.
My average speed for both rides is the same.
Seems to me both rides should be about the same or maybe I should be less tired after the Specialized ride.
What am I missing?