The Bennington 2575 RFSIO 2006 vs Bennington 2575 RSi 2004 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 — Bennington 2575 RFSIO 2006 at 25,0 ft versus Bennington 2575 RSi 2004 at 24,0 ft. Weight tells a clearer story for trailering families: the Bennington 2575 RSi 2004 tips the scales at 2 475 lbs — 2 116 lbs less than the Bennington 2575 RFSIO 2006 at 359 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 power gap is worth calling out. Rated to 115 hp, the Bennington 2575 RSi 2004 has a 107-hp advantage over the Bennington 2575 RFSIO 2006's 8-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 17 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 Bennington 2575 RSi 2004 comes in at 22 lbs per hp versus 45 lbs per hp for the Bennington 2575 RFSIO 2006. 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.
The Bennington 2575 RFSIO 2006 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Bennington 2575 RSi 2004 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: Performance buyers should lean toward the Bennington 2575 RSi 2004 and its 115-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Bennington 2575 RFSIO 2006 with its 8-hp rating is the more economical daily driver.