It's complicated.
Take aluminum bike "A". Bike has full Shimano 105 on it and Brand X wheels.
Rides a certain way. Maybe you like it, maybe you don't. Take off Brand X wheels, and put on Brand Z wheels. Bike will ride very differently. Maybe all of a sudden, you like it. Wheels made all the difference.
Take carbon bike "B". Bike has full Shimano 105 and the same Brand X wheels. It's going to ride very diffently compared to the aluminum bike. Here, the frame made the difference.
Then, to complicate matters more....take the TIRES off the Brand X wheels, and put on different rubber. Bike rides differently again.
That's why side-by-side rides are valuable. Play a little with the pieces-parts.
And "comfort" is really a personal opinion. What's comfortable for me, may not be comfortable for you.....
ETA: Sounds like everyone agrees, ChiliPepper...get out and ride!
Last edited by 7rider; 08-22-2008 at 11:25 AM.
2007 Seven ID8 - Bontrager InForm
2003 Klein Palomino - Terry Firefly (?)
2010 Seven Cafe Racer - Bontrager InForm
2008 Cervelo P2C - Adamo Prologue Saddle