When two boats share the same hull type — in this case both the Larson 1750 LX 2009 and the Larson SEi 180 LX I/O 2008 are modified vee designs with fiberglass 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?
On paper these two are close siblings in the size department — Larson 1750 LX 2009 at 17,1 ft versus Larson SEi 180 LX I/O 2008 at 17,0 ft. Weight tells a clearer story for trailering families: the Larson SEi 180 LX I/O 2008 tips the scales at 2 365 lbs — 2 161 lbs less than the Larson 1750 LX 2009 at 204 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 Larson SEi 180 LX I/O 2008 tops out at 225 hp. Engine specs for the Larson 1750 LX 2009 aren't listed — confirm with a dealer before selecting an outboard.Both carry nearly identical fuel loads — 23 gal and 23 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Larson SEi 180 LX I/O 2008 is rated for 8 passengers, while the Larson 1750 LX 2009 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson SEi 180 LX I/O 2008 could be the deciding factor.
The Larson SEi 180 LX I/O 2008 has a documented top speed of 41 mph. Speed data wasn't available for the other model.
Bottom line: Choose the Larson SEi 180 LX I/O 2008 if your priority is putting more people on the water — it handles 8 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Larson 1750 LX 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.