Larson 180 Sport I/O 2007 boat specs
Larson
Larson 180 Sport I/O 2007
2007
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VS
Larson LX 180 S O/B 2013 boat specs
Larson
Larson LX 180 S O/B 2013
2013
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Larson 180 Sport I/O 2007 vs Larson LX 180 S O/B 2013 — Same Brand, Different Boat

Matching a modified vee Larson 180 Sport I/O 2007 against a deep vee Larson LX 180 S O/B 2013 means you're likely deciding between two genuinely 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 — Larson 180 Sport I/O 2007 at 17,0 ft versus Larson LX 180 S O/B 2013 at 18,5 ft. Weight tells a clearer story for trailering families: the Larson 180 Sport I/O 2007 tips the scales at 2 375 lbs — 196 lbs more than the Larson LX 180 S O/B 2013 at 2 179 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 190 hp, the Larson 180 Sport I/O 2007 has a 40-hp advantage over the Larson LX 180 S O/B 2013'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 180 Sport I/O 2007 carries 23 gallons versus 3 gallons in the Larson LX 180 S O/B 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 8 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: Performance buyers should lean toward the Larson 180 Sport I/O 2007 and its 190-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Larson LX 180 S O/B 2013 with its 150-hp rating is the more economical daily driver.
General Boat Info
MakeLarson
MakeLarson
Model180 Sport I/O
ModelLX 180 S O/B
Model Year2007
Model Year2013
Measurements / Dimensions
Beam7 ft. 4 in. (2.24 m)
Beam7 ft. 10 in. (2.39 m)
Beam - Meters2.24
Beam - Meters2.39
Beam - Inches88
Beam - Inches94
Deadrise21℃
Deadrise21°
Draft [max] - Detail31 in. (78.7 cm)
Draft [max] - Detail31 in. (79 cm)
Draft [max] - Meters0.79
Draft [max] - Meters0.79
Draft [max] - Inches31
Draft [max] - Inches31
Weight - Detail2,375 lbs. (1,080 kg)
Weight - Detail2,179 lbs. (988 kg) with Mercury 115 4S
Weight - kg1077.28
Weight - kg988.38
Weight - lbs.2375
Weight - lbs.2179
Length - Meters5.36
Length - Metersnot available
Length - Feet17
Length - Feet18.5
Length - Inches7
Length - Inchesnot available
Length overall - Detail17 ft. 7 in. (5.36 m)
Length overall - Detail18 ft. 6 in. (5.64 m)
Length overall - Meters5.36
Length overall - Meters5.64
Length overall - Inches211
Length overall - Inches222
Body / Hull
Hull materialFiberglass
Hull materialComposite
Hull typeModified Vee
Hull typeDeep Vee
Engine and Drivetrain
Engine/s standardVolvo Penta 4.3 GL
Engine/s standardnot available
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Detail30 gal. (114 l)
Fuel tank capacity - Liters87.06
Fuel tank capacity - Liters113.56
Fuel tank capacity - Gal23
Fuel tank capacity - Gal3
Fuel typeGas
Fuel typeGas
Drive typeInboard/Outboard
Drive typeOutboard
Engine max190 hp
Engine max150 hp
Operational Info
Maximum capacity1,150 lbs. (522 kg)
Maximum capacity1,850 lbs. (839 kg)
Maximum people8
Maximum people8
Trailer Info
Trailer - DetailCustom EZ Loader
Trailer - DetailLX 3400 with swing tongue
Trailer - Length over allnot available
Trailer - Length over all25 ft. 1 in. (7.64 m)

Larson 180 Sport I/O 2007 vs Larson LX 180 S O/B 2013 — Common Questions

Which is the larger boat — the Larson 180 Sport I/O 2007 or the Larson LX 180 S O/B 2013?
The Larson LX 180 S O/B 2013 is the longer of the two at 18,5 feet overall. The Larson 180 Sport I/O 2007 comes in at 17,0 feet, making it roughly 1,5 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Larson 180 Sport I/O 2007 or the Larson LX 180 S O/B 2013?
For trailering, the Larson LX 180 S O/B 2013 has the edge at 2 179 lbs dry weight versus 2 375 lbs for the Larson 180 Sport I/O 2007. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Larson 180 Sport I/O 2007 is rated to a maximum of 190 hp, giving it the larger power ceiling. The Larson LX 180 S O/B 2013 tops out at 150 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Larson 180 Sport I/O 2007 is Coast Guard rated for 8 passengers, while the Larson LX 180 S O/B 2013 is certified for 8. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Larson LX 180 S O/B 2013 measures 94" wide, compared to 88" for the Larson 180 Sport I/O 2007. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Larson 180 Sport I/O 2007 or the Larson LX 180 S O/B 2013?
The Larson 180 Sport I/O 2007 has the bigger tank at 23 gallons, versus 3 gallons on the Larson LX 180 S O/B 2013. That 20-gallon difference translates to roughly 60–100 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson 180 Sport I/O 2007 and Larson LX 180 S O/B 2013 from the same manufacturer?
Yes — both the Larson 180 Sport I/O 2007 and the Larson LX 180 S O/B 2013 are built by Larson. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.