The Sylvan Pro Sport 1700 2006 vs Sylvan Signature Sport 8520 RE 2010 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.
Size is the most obvious dividing line here. The Sylvan Pro Sport 1700 2006 measures 17,0 feet overall (2006), giving it roughly 15,0 additional feet of deck space compared to the Sylvan Signature Sport 8520 RE 2010 at 2,0 feet (2010). Weight tells a clearer story for trailering families: the Sylvan Pro Sport 1700 2006 tips the scales at 122 lbs — 103 lbs more than the Sylvan Signature Sport 8520 RE 2010 at 19 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 — 135 hp for the Sylvan Pro Sport 1700 2006 and 115 hp for the Sylvan Signature Sport 8520 RE 2010. 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. Fuel capacity breaks the other way: the Sylvan Signature Sport 8520 RE 2010 carries 35 gallons versus 31 gallons in the Sylvan Pro Sport 1700 2006. 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 Sylvan Signature Sport 8520 RE 2010 is rated for 12 passengers, while the Sylvan Pro Sport 1700 2006 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sylvan Signature Sport 8520 RE 2010 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Sylvan Signature Sport 8520 RE 2010 comes in at 0 lbs per hp versus 1 lbs per hp for the Sylvan Pro Sport 1700 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.
Bottom line: Choose the Sylvan Signature Sport 8520 RE 2010 if your priority is putting more people on the water — it handles 12 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Sylvan Pro Sport 1700 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.