Both the Triton Boats Frontier 17 2007 and the Triton Boats X18 2013 are modified-V designs, both built in aluminium, so 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 - Triton Boats Frontier 17 2007 at 17,0 ft versus Triton Boats X18 2013 at 18,7 ft. Weight tells a clearer story for trailering families: the Triton Boats X18 2013 tips the scales at 1 180 lbs - 120 lbs less than the Triton Boats Frontier 17 2007 at 1 060 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 90 hp, the Triton Boats X18 2013 has a 40-hp advantage over the Triton Boats Frontier 17 2007's 50-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 24 gal and 21 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Triton Boats Frontier 17 2007 is rated for 7 passengers, while the Triton Boats X18 2013 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 17 2007 could be the deciding factor.
Bottom line: Choose the Triton Boats Frontier 17 2007 if your priority is putting more people on the water - it handles 7 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Triton Boats X18 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.