The Lund 1648 2010 vs Lund U1756 2005 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
On paper these two are close siblings in the size department — Lund 1648 2010 at 15,8 ft versus Lund U1756 2005 at 17,0 ft. At 42 lbs and 74 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 — 35 hp for the Lund 1648 2010 and 55 hp for the Lund U1756 2005. 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 Lund U1756 2005 is rated for 5 passengers, while the Lund 1648 2010 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Lund U1756 2005 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Lund 1648 2010 comes in at 1 lbs per hp versus 1 lbs per hp for the Lund U1756 2005. 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 Lund U1756 2005 if your priority is putting more people on the water — it handles 5 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Lund 1648 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.