Wondering, because I've already purchased the gruppo for 50/39 chainring and 12-27 (10-Speed) cassette, for my unassembled road bike. I'm guessing the bike will weigh about 18 pounds assembled, and will be on 700C-25mm tires.
I've been riding my touring bike with 46/36/24 chainrings and (9-Speed) 12-27 cassette since August 1st (about 200 miles). While I did have to use the 24-Chainring and one of the mid-cogs for a road-hill once so far (steep hill for about 30 meters travel), the bike with accessories weighs about 36 pounds. I've been spending about 95 percent of my time on the Saluki's 36-Chainring, and slowly spending a little more time on the 46-Chainring on the flats. Average speed on Saluki for the 200 miles is about 12.8 MPH.
I'm now debating (again) if I should be setting the road bike up with a triple gruppo. But my only experience on SE Michigan roads has been with the heavier Saluki with smaller 650B wheels & 33mm tires. I would appreciate input from the Michigan 50+ roadies, on the drivetrain they use, as far as double versus triple Chainrings ... number of teeth on Chainrings ... and cassette gearing.
Also a generic question for everyone, as far as a compact 50/34 Double Crank ... The weapon of choice has been the FC-R700 from Shimano. Is the R700 still considered better than Shimano's [Ultegra SL] "Hollowtech II Crankset ... FC-6650-G"?