Bumpiness? As in when you hit a bump? No, it's not suspension. Carbon forks absolutely help take the edge off the road buzz/road noise, however, >>1066419
cannondale quick, if you want something that has that road bike agility and sportyness
whatever you do, test ride a few, see what you like the most. also you can post in /bbg/>>1066400
if you use WD40, post here so we can laugh at you for fucking up your bike. Use chain lube. Wipe the chain down after you lube the chain as well.>>1066455
jerk around the crank and see if it has any play, indicating if it's loose. See if the right pedal is loose. Grab a wrench and try tightening it.
If it's neither of those, probably bottom bracket. Take it to a shop, see what they say.