Worst/Roughest Coaster?

Hercules at Dorney Park

Cyclone at SFNE, Mean Streak, Time Warp at Canada's Wonderland, most SLC's/Boomerangs, and oddly enough the B&M Floorless at Ocean Park (that thing made Iron Wolf seem smooth). Hades was my #1 coaster when it opened, a few years later it was one the worst coasters (as well as Zeus as nothing at Mt Olympus is maintained properly).

Did not find SOB as rough as most people said it was but I only rode it once, on a bad day or in a bad seat day I could definitely see the potential for that to be up there as well. Considering how bad Mean Streak could be I would think rides like Texas Giant and Rattler were really bad as well.

Nighthawk at Carowinds, all boomerang models with the exception of the inverted models but Goliath's restraints at SFNE just break the whole ride experience, and those god awful Vekoma SLCs.

Worst and roughest are not synonymous for me, so I'd say the following (all in no particular order):

Worst Woods: Grizzly at CGA

Roughest Woods: Dinn Woodies (Mean Streak, Wolverine Wildcat, Psyclone, etc.), Hurler

Worst Steels: Arrow Corkscrews, Pinfari Zyklons, Zamperla Volares

Roughest Steels: Arrow loopers, B&M Stand-Ups (except Riddler's Revenge), Vekoma Boomerangs & SLCs

It's too hard to pick just one when you've ridden over 500 coasters.

I want to give three answers for roughest

Firstly, Roughest modern? Rip Ride Rockit at Universal Florida. Tear that sucker down.

However, if I'm telling you the absolutel roughest, I would have to say Big Dipper and Grand National at Blackpool Pleasure Beach. However, they're wooden roller coasters dating to 1923 and 1935 respectively... Getting on to a centural old, and wooden, you gotta expect a lot of shakes. That said, looking at Wikipedia now I see someone actually broke their neck on Grand National a couple of years ago... Maybe I shouldn't be so forgiving.

Worst... hmmm, Other than a touring kiddy caterpillar coaster I rode with a friend's disabled son I was looking after (only once, I was too big to be comfortable), I can't think of a bad coaster other than RipRideRocket at the moment. Edit: Going to go with X:/ No Way out at Thorpe Park. Simply putting a coaster inside is pretty pointless if you don't actually do something with it.

Any Stand-Up still in existence. Time to get rid of these nutcrackers once and for all.

To answer the_man, the Rattler was not terrible before the refurb. The Texas Giant, prior to it’s rebrand to The New Texas Giant, was a beast. Neither are bad now and both exceptional rides. On the old Texas Giant, you felt like a scrambled egg when you got off. I am one of those weirdos that love rough wooden coasters and wish SFOT would have just made a new Texas Giant right next to the old one, but it was a harsh ride, no doubt. To compare the two, I much prefer The New Texas Giant over the Rattler, but the Rattler is fantastic.

Roughest for me right now is the Wildcat at HersheyPark. It was smooth and a great ride when it first opened, but now it is a really rough ride, especially with all the twists and turns.

I agree with the stand-ups as worst. The moments when you are in actual free fall those style coasters are fun, you get a floating, flying sensation. But other than those 10 seconds, the rest of the ride is rough and painful and I could feel it in my knees and shoulders.

Rode the (Riverside) Cyclone at SFNE in it's original configuration and it was a great ride; became extremely rough in it's final (pre-conversion) years. Also,the Goliath at SFNE is a double loser as it is one of the roughest and worst rides I've ever ridden.

The earlier comments about all stand-ups and the Arrow loopers are spot on.

Rode Rattler in the original configuration and thought it was one of the best
coaster I had ridden (well, it was almost 30 years ago)! The mods made after
the ambulance chaser lawsuits piled on made it incredibly rough.

Isn’t there a Vekoma looper in France that’s considered one of if not the worst?

I went on GhostRider at Knott's Berry Farm just before it went down for the nine-month GCI re-tracking, and it was genuinely horrific. It's amazing how quickly and easily a CCI can go from brilliant to unrideable if you don't take care of it. Not only was it unbearably rough, the ride was crawling through what should be a brilliant layout. Thankfully Knott's has finally done right by it, if the reviews are anything to go by, and GhostRider is probably the coaster I most want to reevaluate. As of now, it is the lowest ranked non-kiddie or portable coaster I have ever been on.

If we're not counting that and we want something currently operating (which rules out Rattler, Mean Streak, and Clementon's 2004 S&S death trap Hell Cat), it's probably another old CCI, Stampida at PortAventura. Super promising layout and dueling aspect, but the rolling stock is atrocious and ruins the ride.

As for worst (rough does not automatically mean bad! Please do not equate them!), the Zamperla Volare and Chance Tobaggan models are truly hellish. There's also a kids coaster at Casino Pier in New Jersey called Pirate's Hideaway which is a spiral lift and two small hills in a carnival facade, so far so alright, and then the ride goes into an empty box to complete a series of tiny (think about two feet) drops and hairpin turns that smash you into the sides of the car with zero personality, rhyme or reason. Hilariously awful coaster.

Worst? Rougarou at Cedar Point. I loved it as Mantis, stand-up and all, but now it bangs my ears so badly that I get a headache every time I ride it, and I only ride it if I HAVE to...and at my age I don't HAVE to do anything!

My family ABSOLUTELY HATED Flight Deck (Vekoma SLC) at Canada’s Wonderland

I remember that Green Lantern “roller coaster” at Magic Mountain being rather unenjoyable...Mean Streak at Cedar Point was pretty rough too, towards the end...

Green Lanter was way too terrible to even be called a coaster

Canyon Blaster at Adventuredome is Las Vegas.

Roughest for me Shockwave at Six Flags Great America.