Sorry for the thread revival but looking at getting a GT Grade X as my commuter and winter bike. I have been commuting on a single speeder and miss gears, drop bar and room for bigger tires. Plus of course a bike I can do some tuning on over time
But, yes, each step up is slightly lighter and slightly better alloys and heat treatments so they give better longevity. They diabolically make each step just a little better and a little more expensive so we all end up overbuying and the group becomes obsolete long before it ever actually wears out.
Is it "worth it " ? I'm a sucker as much as anyone else. Just enjoy what you decide upon, because I am sure it will be good and provide years of great functionality.
So much truth in that. I will say I felt a big difference going from Ultegra 6700 to Dura Ace 7900. As for 105 I have not ridden it since 1991.
5800 105 looks really amazing with all of the features from DA 9000. Anybody got any more experience with the group so far?
Reading what I can find it more a question about durability than function and weight of course. I still think spending money on a nice wheelset for the bike is the way to go first. Worth noting the Grade X comes with Ultegra shifters and brakes.