When two boats share the same hull type — in this case both the Larson LX 860 SF O/B 2012 and the Larson LXi 208 I/O 2007 are modified vee designs with composite construction — 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?
Size is the most obvious dividing line here. The Larson LX 860 SF O/B 2012 measures 18,5 feet overall (2012), giving it roughly 16,5 additional feet of deck space compared to the Larson LXi 208 I/O 2007 at 2,0 feet (2007). Weight tells a clearer story for trailering families: the Larson LXi 208 I/O 2007 tips the scales at 3 245 lbs — 3 067 lbs less than the Larson LX 860 SF O/B 2012 at 178 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 270 hp, the Larson LXi 208 I/O 2007 has a 120-hp advantage over the Larson LX 860 SF O/B 2012's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Larson LXi 208 I/O 2007 carries 29 gallons versus 3 gallons in the Larson LX 860 SF O/B 2012. 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 Larson LXi 208 I/O 2007 is rated for 9 passengers, while the Larson LX 860 SF O/B 2012 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson LXi 208 I/O 2007 could be the deciding factor.
Bottom line: Choose the Larson LXi 208 I/O 2007 if your priority is putting more people on the water — it handles 9 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Larson LX 860 SF O/B 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.