I hit a nice downgrade today on my Trek FX 7.3. Before i knew it i was about to hit 40MPH, when i got a little nervous. The bike didnt wobble, or go crazy or anything..some vibration of course. It's 24 speed, I tucked my knees.

is this stupid? The bike is pretty new..i think it will be ok, but it would sure be a bummer to wipe out at 40mph