The Triton Boats Frontier 21 SC 2006 vs Triton Boats VT 17 2009 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 Triton Boats Frontier 21 SC 2006 measures 21,0 feet overall (2006), giving it roughly 4,0 additional feet of deck space compared to the Triton Boats VT 17 2009 at 17,0 feet (2009). Weight tells a clearer story for trailering families: the Triton Boats Frontier 21 SC 2006 tips the scales at 1 330 lbs - 370 lbs more than the Triton Boats VT 17 2009 at 960 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 125 hp, the Triton Boats Frontier 21 SC 2006 has a 50-hp advantage over the Triton Boats VT 17 2009's 75-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Triton Boats Frontier 21 SC 2006 carries 30 gallons versus 22 gallons in the Triton Boats VT 17 2009. 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 Triton Boats Frontier 21 SC 2006 is rated for 8 passengers, while the Triton Boats VT 17 2009 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Triton Boats Frontier 21 SC 2006 could be the deciding factor.
Bottom line: Choose the Triton Boats Frontier 21 SC 2006 if your priority is putting more people on the water - it handles 8 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Triton Boats VT 17 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.