The Triton Boats 170 CC 2009 is a modified-V design and the Triton Boats 177 Explorer 2010 is a deep-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department - Triton Boats 170 CC 2009 at 17,0 ft versus Triton Boats 177 Explorer 2010 at 17,6 ft. Weight tells a clearer story for trailering families: the Triton Boats 177 Explorer 2010 tips the scales at 1 950 lbs - 1 060 lbs less than the Triton Boats 170 CC 2009 at 890 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 - 90 hp for the Triton Boats 170 CC 2009 and 90 hp for the Triton Boats 177 Explorer 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.
For family outings this is probably the sharpest distinction between the two. The Triton Boats 177 Explorer 2010 is rated for 650 passengers, while the Triton Boats 170 CC 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 177 Explorer 2010 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Triton Boats 170 CC 2009 comes in at 10 lbs per hp versus 22 lbs per hp for the Triton Boats 177 Explorer 2010. 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 Triton Boats 177 Explorer 2010 if your priority is putting more people on the water - it handles 650 passengers and at 17,6 ft it has the deck room to back that rating up comfortably. The Triton Boats 170 CC 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.