Lowe Boats Roughneck 1870 Pathfinder 2021 boat specs
Lowe
Lowe Boats Roughneck 1870 Pathfinder 2021
2021
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VS
Lowe FS185 2005 boat specs
Lowe
Lowe FS185 2005
2005
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Lowe Boats Roughneck 1870 Pathfinder 2021 vs Lowe FS185 2005 — Same Brand, Different Boat

The Lowe Boats Roughneck 1870 Pathfinder 2021 vs Lowe FS185 2005 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 — Lowe Boats Roughneck 1870 Pathfinder 2021 at 18,0 ft versus Lowe FS185 2005 at 18,0 ft. Weight tells a clearer story for trailering families: the Lowe Boats Roughneck 1870 Pathfinder 2021 tips the scales at 1 052 lbs — 1 040 lbs more than the Lowe FS185 2005 at 12 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 — 150 hp for the Lowe Boats Roughneck 1870 Pathfinder 2021 and 150 hp for the Lowe FS185 2005. 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. Fuel capacity breaks the other way: the Lowe FS185 2005 carries 38 gallons versus 19 gallons in the Lowe Boats Roughneck 1870 Pathfinder 2021. 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 Lowe FS185 2005 is rated for 7 passengers, while the Lowe Boats Roughneck 1870 Pathfinder 2021 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Lowe FS185 2005 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Lowe FS185 2005 comes in at 0 lbs per hp versus 7 lbs per hp for the Lowe Boats Roughneck 1870 Pathfinder 2021. 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 Lowe Boats Roughneck 1870 Pathfinder 2021 is trailerable — a genuine lifestyle advantage at this size. The Lowe FS185 2005 isn't listed as trailerable, which may mean a permanent berth or mooring is required.

Bottom line: Choose the Lowe FS185 2005 if your priority is putting more people on the water — it handles 7 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Lowe Boats Roughneck 1870 Pathfinder 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail18.00 ft
Length overall - Detail18 ft. 2 in. (5.53 m)
Length - Feet18
Length - Feet18
Length overall - Meters5.49
Length overall - Meters5.54
Length overall - Inches216
Length overall - Inches218
Beam9.60 ft
Beam95 in. (2.41 m)
Beam - Meters2.93
Beam - Meters2.41
Beam - Inches115
Beam - Inches95
Displacement1052.00 lbs
Displacementnot available
Weight - Detailnot available
Weight - Detail1,200 lbs. (544 kg)
Weight - kgnot available
Weight - kg544.31
Weight - lbs.not available
Weight - lbs.12
Width [transom] - Detailnot available
Width [transom] - Detail83 in. (2.1 m)
Height - Detailnot available
Height - DetailBow: 41 in. (1.04 m)
Height - Metersnot available
Height - Meters1.04
Height - Inchesnot available
Height - Inches41
Height [transom]not available
Height [transom]20 in. (.50 m)
Length - Metersnot available
Length - Meters5.53
Length - Inchesnot available
Length - Inches2
Engine and Drivetrain
Fuel tank capacity - Gal19
Fuel tank capacity - Gal38
Fuel tank capacity - Liters71.92
Fuel tank capacity - Liters143.85
Engine makeMercury
Engine makenot available
Engine modelELPT FourStroke
Engine modelnot available
Horsepower150 hp
Horsepowernot available
Drive typeoutboard
Drive typeOutboard
Engine/s standardnot available
Engine/s standard90 hp Mercury Two-Stroke
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail38 gal. (144 l)
Engine maxnot available
Engine max150 hp (111 kw)
Operational Info
TrailerableYes
Trailerablenot available
Boat typePower
Boat typenot available
Maximum capacitynot available
Maximum capacity1,759 lbs. (798 kg)
Maximum peoplenot available
Maximum people7
General Boat Info
Makenot available
MakeLowe
Modelnot available
ModelFS185
Model Yearnot available
Model Year2005
Body / Hull
Hull thicknessnot available
Hull thickness.100 in. (2.5 mm)
Trailer Info
Trailer - Detailnot available
Trailer - DetailPainted Bunk Trailer
Trailer - Length over allnot available
Trailer - Length over all23 ft. 6 in. (7.16 m)

Lowe Boats Roughneck 1870 Pathfinder 2021 vs Lowe FS185 2005 — Common Questions

Which is the larger boat — the Lowe Boats Roughneck 1870 Pathfinder 2021 or the Lowe FS185 2005?
The Lowe FS185 2005 is the longer of the two at 18,0 feet overall. The Lowe Boats Roughneck 1870 Pathfinder 2021 comes in at 18,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Lowe Boats Roughneck 1870 Pathfinder 2021 or the Lowe FS185 2005?
For trailering, the Lowe FS185 2005 has the edge at 12 lbs dry weight versus 1 052 lbs for the Lowe Boats Roughneck 1870 Pathfinder 2021. 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.
How many people can each boat hold?
The Lowe Boats Roughneck 1870 Pathfinder 2021 is Coast Guard rated for 5 passengers, while the Lowe FS185 2005 is certified for 7. 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 Lowe FS185 2005 has a better power-to-weight ratio at 0 lbs per hp compared to 7 lbs per hp for the Lowe Boats Roughneck 1870 Pathfinder 2021. 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 Lowe Boats Roughneck 1870 Pathfinder 2021 measures 115" wide, compared to 95" for the Lowe FS185 2005. 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 Lowe Boats Roughneck 1870 Pathfinder 2021 or the Lowe FS185 2005?
The Lowe FS185 2005 has the bigger tank at 38 gallons, versus 19 gallons on the Lowe Boats Roughneck 1870 Pathfinder 2021. That 19-gallon difference translates to roughly 57–95 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Lowe Boats Roughneck 1870 Pathfinder 2021 and Lowe FS185 2005 from the same manufacturer?
Yes — both the Lowe Boats Roughneck 1870 Pathfinder 2021 and the Lowe FS185 2005 are built by Lowe. 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.