I have 5. Ok six if you count the tandem. Steel, aluminum, and carbon fiber, cover all the bases. I mountain bike mostly though so the tires can dampen a lot o

I have 5. Ok six if you count the tandem. Steel, aluminum, and carbon fiber, cover all the bases. I mountain bike mostly though so the tires can dampen a lot of the vibrations people suggest steel sucks up. Also, I think getting a good carbon bar on an aluminum bike does wonders for whatever vibrations the trail is kicking up. I do agree about wheels though, good stiff wheels and a through axel completely change the ride of a bike versus old school aluminum rims with quick releases.