Achilles LSI-335 2011 boat specs
Achilles
Achilles LSI-335 2011
2011
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VS
Achilles SG-124 2007 boat specs
Achilles
Achilles SG-124 2007
2007
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Achilles LSI-335 2011 vs Achilles SG-124 2007 — Same Brand, Different Boat

The Achilles LSI-335 2011 vs Achilles SG-124 2007 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

On paper these two are close siblings in the size department — Achilles LSI-335 2011 at 11,0 ft versus Achilles SG-124 2007 at 12,0 ft. At 91 lbs and 175 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

Both boats share a closely matched power ceiling — 15 hp for the Achilles LSI-335 2011 and 35 hp for the Achilles SG-124 2007. 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.

Both boats are rated for 5 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.

At this size, power-to-weight ratio matters more than outright horsepower. The Achilles SG-124 2007 comes in at 5 lbs per hp versus 6 lbs per hp for the Achilles LSI-335 2011. 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.

The Achilles LSI-335 2011 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Achilles SG-124 2007 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.

Bottom line: Performance buyers should lean toward the Achilles SG-124 2007 and its 35-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Achilles LSI-335 2011 with its 15-hp rating is the more economical daily driver.
General Boat Info
MakeAchilles
MakeAchilles
ModelLSI-335
ModelSG-124
Model Year2011
Model Year2007
Measurements / Dimensions
Beam5 ft. 6 in. (168 cm) 2 ft. 7 in. (78 cm) inside
Beam5 ft. 4 in. (161 cm)
Beam - Meters1.68
Beam - Meters1.63
Beam - Inches66
Beam - Inches64
Weight - Detail91 lbs. (41.5 kg)
Weight - Detail175 lbs. (79.5 kg)
Weight - kg41.28
Weight - kg79.38
Weight - lbs.91
Weight - lbs.175
Length [deck]7 ft. 5 in. (226 cm)
Length [deck]not available
Length - Feet11
Length - Feet12
Length overall - Detail11 ft. (335 cm)
Length overall - Detail12 ft. 4 in. (375 cm)
Length overall - Meters3.35
Length overall - Meters3.76
Length overall - Inches132
Length overall - Inches148
Length - Inchesnot available
Length - Inches4
Body / Hull
Hull materialInflatable
Hull materialnot available
Hull typeInflatable Non Rigid
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter18 in. (45 cm)
Tube diameter17 in. (43 cm)
Number of tubes3 air chambers, plus keel and floor
Number of tubesnot available
Engine and Drivetrain
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeOutboard
Engine max15 hp
Engine max35 hp
Operational Info
Maximum capacity1,630 lbs. (740 kg)
Maximum capacity1,542 lbs. (700 kg)
Maximum people5
Maximum people5

Achilles LSI-335 2011 vs Achilles SG-124 2007 — Common Questions

Which is the larger boat — the Achilles LSI-335 2011 or the Achilles SG-124 2007?
The Achilles SG-124 2007 is the longer of the two at 12,0 feet overall. The Achilles LSI-335 2011 comes in at 11,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Achilles LSI-335 2011 or the Achilles SG-124 2007?
For trailering, the Achilles LSI-335 2011 has the edge at 91 lbs dry weight versus 175 lbs for the Achilles SG-124 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 Achilles SG-124 2007 is rated to a maximum of 35 hp, giving it the larger power ceiling. The Achilles LSI-335 2011 tops out at 15 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 Achilles LSI-335 2011 is Coast Guard rated for 5 passengers, while the Achilles SG-124 2007 is certified for 5. 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 has the better power-to-weight ratio?
The Achilles SG-124 2007 has a better power-to-weight ratio at 5 lbs per hp compared to 6 lbs per hp for the Achilles LSI-335 2011. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Achilles LSI-335 2011 measures 66" wide, compared to 64" for the Achilles SG-124 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.
Are the Achilles LSI-335 2011 and Achilles SG-124 2007 from the same manufacturer?
Yes — both the Achilles LSI-335 2011 and the Achilles SG-124 2007 are built by Achilles. 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.