When two boats share the same hull type — in this case both the Kingfisher 1625 Falcon 2013 and the Kingfisher 1725 Flex SC 2013 are deep vee designs with aluminum 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 — Kingfisher 1625 Falcon 2013 at 16,0 ft versus Kingfisher 1725 Flex SC 2013 at 17,5 ft. Weight tells a clearer story for trailering families: the Kingfisher 1725 Flex SC 2013 tips the scales at 1 495 lbs — 1 400 lbs less than the Kingfisher 1625 Falcon 2013 at 95 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.
The Kingfisher 1625 Falcon 2013 carries a rated maximum of 75 hp. Engine data for the Kingfisher 1725 Flex SC 2013 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Kingfisher 1725 Flex SC 2013 carries 35 gallons versus 2 gallons in the Kingfisher 1625 Falcon 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Kingfisher 1725 Flex SC 2013 is rated for 5 passengers, while the Kingfisher 1625 Falcon 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 1725 Flex SC 2013 could be the deciding factor.
Bottom line: Choose the Kingfisher 1725 Flex SC 2013 if your priority is putting more people on the water — it handles 5 passengers and at 17,5 ft it has the deck room to back that rating up comfortably. The Kingfisher 1625 Falcon 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.