Ive personally never done it, come close to but never at a high enough speed for damage.

But i did go driving with my ex's parents once and shit they flew over them you could hear the car botteming out im like "WTF dont you care about your car? to myself of course a free ride home is a free ride home isnt it.

But i intend to one day just not anytime soon.

I don't have a car yet but as far as I know, I'm not going to do that to my car. However, I have tennis in the morning and there is a parking lot that surrounds the court. There is one speed bump that is much taller than the others and also not as wide. Even if a car passes over it at about 6-10 mph, it manages to bottom itself out. Everyday I hear the crunch of bodywork hit the asphalt and the sound of creaking suspension parts. One lady in a van drove to it fairly quickly and hit the brakes and I saw the van did a small wheel stand. The next time she went over it, she was really careful.

There is a Nismo 350z on the other side of the speed bump. I knew the owner was able to miss the speed bump because the speed bump doesn't span far enough but I can't imagine what would happen if he went over it. He'd probably lose the front lip spoiler, his exhaust, and maybe a chunk of his rear "diffuser-like" thing.

Well it's not a speed bump, but what the heck.

There is a 'countryroad' around here with a railroad crossing where the road goes up probably 1 meter and then down, over about 15 meter. Well, If you go about 140-160 there you really get some air probably a couple of meters. Actually you have to align for the jump because there is a slight bend just after the jump! It's terribly irresponsible and scary. I'm more carefull now, I don't want that kind of air anymore.

Quote from Scatter :

There is a Nismo 350z on the other side of the speed bump. I knew the owner was able to miss the speed bump because the speed bump doesn't span far enough but I can't imagine what would happen if he went over it. He'd probably lose the front lip spoiler, his exhaust, and maybe a chunk of his rear "diffuser-like" thing.

If he approached it from an Angle so one wheel stood on it before the rest chances are he would make it across no problem but he would have to do it very slowly.

Well.. my sisters husband usually goes over them with 2wheels.. and its usually ok even @ 60km/h :P

Not a speed bump but worse than that. I was on my scooter with my ex gf.i was doing about 50 km/h on the highway(very busy traffic hour) and suddenly realised a very big bump right in front of me. Didn't do any brake or manouver because it'd make things worse, i just rode onto it and it was really bad.It hurts.

A bump made of mud(dried) on the highway...

Quote from ZORER :

A bump made of mud(dried) on the highway...

The reminds me of a time we had some sort of mud mound on one of our fields when I lived on a farm. Literally a bucket load of mud dumped and we started to shape it a little bit into a ramp. Well it wasn't a gradual slope, it was pretty much still a mound, just more rounded off.

Me being me thought I'd have a shot at taking it quite quickly on the KX80 we had, got upto about third gear in the powerband and hit the mound. I ended up flying further than the bike did, and it was a rather painful landing. No damage to me or the bike, apart from the handlebars had moved closer to the tank, nothing we couldn't fix with a loosening of a few bolts.

After that we made it more of a gradual slope and it was a right blast, getting a good bit of air.

I've always noticed speed bumps before I hit 'em. But once I hit a ditch a bit too fast.

I was driving a pick-up in the woods and there was a small clearing that had tall grass groving on it. Accelerated and shifted to 2 low and... hit my head on the roof. It hurt.

The small ditch was so well camouflaged that I almost stepped into it when I looked around the truck for damage. There was non by the way.

My bus driver hit one once at about 45 m.p.h. in a SCHOOL BUS I was in the very back and I hit my head on the roof and Im only 4ft 4 4ft 5

I had that too

Me and some friends were in the back of an american van, kinda like the A team van, and the driver of the van (a brother of a friend) was driving like a lunatic through Eilat until we hit a giant speedbump.
As the van did not have seatbelts in the back, we pretty much went airborne and all hit our heads pretty bad.
Luckily no one got head wounds, but we never drove in that van again

I can't stand speedbumps, on the neighbour town they have main street full of those with ~100m spacing between them. They're not usual "round" type but straight angles ( __/----\__ )
Imagine crawling over those for every 100m, every time you wanted to go to store. I lost one muffler to those bastards :S

Haven't really hit any speedbumps at high speeds but I got cured of my need for speed after bottoming out on a ditch at ~180

This is what I drive. The suspension is so soft I sometimes don't notice speed bumps
I actually try to hit them at around 45mph because the faster I go (to a certain extent) the less I actually feel them.