I have a nice road bike with 7005 Easton aluminium frame and carbon fork. The ride was always pretty harsh, so I changed saddle to Brooks, changed aluminium handlebar to a carbon one with gel padding under bar tape. It improved comfort a lot. I had my bike fitted at LBS when I bought it and fitted again in a year.

Despite of that I still cannot get rid of pain in my forearms after the ride. I cannot say that I lean to much on my hands while riding. Basically, I can let my hands go without changing my position and strain in my back, so I assume that it fitted just right.

This weekend I went to an LBS and tried Trek Pilot 5.0, carbon frame bike. The ride is as harsh as on my bike. My coworker has an old 10 speed steel bike, and ride on it is very soft and nice, no vibrations.

What can I do? Change the frame to a steel one? Fatter tyres (I can only use 25)? Anything else?