When two boats share the same hull type — in this case both the Zodiac Classic Mark 2C HD 2012 and the Zodiac Classic Mark 2C ST 2011 are inflatable non rigid designs with inflatable construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department — Zodiac Classic Mark 2C HD 2012 at 12,5 ft versus Zodiac Classic Mark 2C ST 2011 at 12,5 ft. Weight tells a clearer story for trailering families: the Zodiac Classic Mark 2C ST 2011 tips the scales at 163 lbs — 146 lbs less than the Zodiac Classic Mark 2C HD 2012 at 17 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats share a closely matched power ceiling — 35 hp for the Zodiac Classic Mark 2C HD 2012 and 35 hp for the Zodiac Classic Mark 2C ST 2011. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
At this size, power-to-weight ratio matters more than outright horsepower. The Zodiac Classic Mark 2C HD 2012 comes in at 1 lbs per hp versus 5 lbs per hp for the Zodiac Classic Mark 2C ST 2011. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
Top speed is rated at 31 mph for the Zodiac Classic Mark 2C ST 2011 and 31 mph for the Zodiac Classic Mark 2C HD 2012.
The Zodiac Classic Mark 2C HD 2012 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Zodiac Classic Mark 2C ST 2011 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: The Zodiac Classic Mark 2C HD 2012 and Zodiac Classic Mark 2C ST 2011 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.