Matching a inflatable rigid Zodiac Cadet RIB 340 2011 against a inflatable non rigid Zodiac Classic Mark 2 HD 2008 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department — Zodiac Cadet RIB 340 2011 at 11,2 ft versus Zodiac Classic Mark 2 HD 2008 at 13,0 ft. At 172 lbs and 191 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling — 25 hp for the Zodiac Cadet RIB 340 2011 and 40 hp for the Zodiac Classic Mark 2 HD 2008. 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.
For family outings this is probably the sharpest distinction between the two. The Zodiac Classic Mark 2 HD 2008 is rated for 7 passengers, while the Zodiac Cadet RIB 340 2011 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac Classic Mark 2 HD 2008 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Zodiac Classic Mark 2 HD 2008 comes in at 5 lbs per hp versus 7 lbs per hp for the Zodiac Cadet RIB 340 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 33 mph for the Zodiac Classic Mark 2 HD 2008 and 30 mph for the Zodiac Cadet RIB 340 2011.
Bottom line: Choose the Zodiac Classic Mark 2 HD 2008 if your priority is putting more people on the water — it handles 7 passengers and at 13,0 ft it has the deck room to back that rating up comfortably. The Zodiac Cadet RIB 340 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.