The Kingfisher 1625 Trio Tiller 2013 is a deep-V design and the Kingfisher 1825 Trio TL 2013 is a modified-V design, so you're likely deciding between two noticeably 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 - Kingfisher 1625 Trio Tiller 2013 at 15,7 ft versus Kingfisher 1825 Trio TL 2013 at 17,7 ft. Weight tells a clearer story for trailering families: the Kingfisher 1825 Trio TL 2013 tips the scales at 1 100 lbs - 225 lbs less than the Kingfisher 1625 Trio Tiller 2013 at 875 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 - 70 hp for the Kingfisher 1625 Trio Tiller 2013 and 70 hp for the Kingfisher 1825 Trio TL 2013. 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 Kingfisher 1825 Trio TL 2013 is rated for 5 passengers, while the Kingfisher 1625 Trio Tiller 2013 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Kingfisher 1825 Trio TL 2013 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Kingfisher 1625 Trio Tiller 2013 comes in at 13 lbs per hp versus 16 lbs per hp for the Kingfisher 1825 Trio TL 2013. 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.
Bottom line: Choose the Kingfisher 1825 Trio TL 2013 if your priority is putting more people on the water - it handles 5 passengers and at 17,7 ft it has the deck room to back that rating up comfortably. The Kingfisher 1625 Trio Tiller 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.