Man i'm gonna have to say one of mine is POT HOLES!!, here in Minnesota they are freaking everywhere. Couple weeks ago i was riding on 35W just got out of downtown came into a turn at about 50mph and there was a huge hole. i mean the thing covered half the lane. Cars on both sides of me so no quick lane change available so I tried to hit the skinner part of the hole and all that was going through my head was OH SH*T i'm going down. I hit the hole pretty damn hard but saved it somehow. Now my handle bars are off about 5 to 10 degrees off from being straight with the tire. Probably my second scariest moment on my bike so far
You need to re-align your forks.
The fork legs are only clamped in place by the upper and lower triple clamps, and the pinch bolt holding the front axle.... as well as a little bit of torque from the fender. When you whack the front end, the parts can shift, and cannot 'return'.... the friction of the clamps prevents them from springing back.
The fork will not have it's best action, if the tubes are not aligned parallel to each other. The action will be 'sticky' from the binding of the bushings and the fork legs. This can cause wheel chatter, and will adversely affect ride quality.
To correct:
1) loosen the
upper triple clamp pinch bolts.
DO NOT DO ANYTHING with the lower triple clamp... that's your 'point of reference' everything else needs to align to.
2) loosen the axle pinch bolt, and slightly loosen the front axle
3) loosen the fender mounts
4) straddle the bike, grab a fist full of front brake.
5) 'pump' the fork.... bounce it through as much of it's stroke as you can while still holding the front brake. Do this half a dozen times.
6) inspect the angle between the bars, and the wheel's alignment.
If it's now 'true', tighten all of the bolts you loosened to do the alignment.