Six Flags Discovery Kingdom · Operating · 2016
The Joker
100 ft · 55 mph
Photo: See Commons · CC BY-SA 4.0
Ride video
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Licensed POV · Watch on YouTube
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An RMC I-Box hybrid with steep drops and aggressive airtime in DC Universe.
Specifications
Stats can be shown in imperial or metric — your choice is remembered on this device.
Ride profile
Scaled against Six Flags Discovery Kingdom's operating coasters
Park intensity
Height
100 ft
#7 of 10 at Six Flags Discovery Kingdom
Ride experience
- Hybrid
- Hybrid · RMC I-Box
Specs from sixflags.com
Learn more
Rocky Mountain Construction (RMC)
Hybrid conversions and custom I-box coasters with twisted, airtime-heavy layouts.
Rocky Mountain hybrid coasters
Steel track on reinvented wooden structures — steep, twisted, and often relentless.
Wooden vs steel coasters
Structure and maintenance differ, but the question for riders is feel — vibration, sound, and how the train moves.
Track compliance — why wood feels alive
Wood flexes; steel is stiffer — the same forces feel different on each structure.
History
Sourced timeline and background for The Joker.
Timeline
2016
The Joker opens
Log & review
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Sources & official links
We link out to parks, manufacturers, and the pages where facts and media come from.
- Six Flags Discovery Kingdom — official sitesixflags.com(opens in a new tab)
- Six Flags Discovery Kingdom on Coaster AtlasPark page
- Ride specifications sourcesixflags.com(opens in a new tab)
- Rocky Mountain Construction — manufacturerrmc-rides.com(opens in a new tab)
- Hero photo (See Commons · CC BY-SA 4.0)Image license & attribution(opens in a new tab)
- Official POV — Licensed POVWatch on YouTube(opens in a new tab)