bagginitdotcom
+1y
Check valves shouldn't affect how it rides unless you're one of those people that puts full pressure into the front bags to have that "cool" raked look. Otherwise, its probably a figment of your imagination. As for stiffness and pushing on the frame, just keep an eye on it. I can't see it being that much more stiff, if any, so if you've been good on the frame since it was welded, then you'll be fine.