Nitro 189 Sport 2010 boat specs
Nitro
Nitro 189 Sport 2010
2010
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VS
Nitro Bay 1900 Tunnel 2005 boat specs
Nitro
Nitro Bay 1900 Tunnel 2005
2005
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Nitro 189 Sport 2010 vs Nitro Bay 1900 Tunnel 2005 — Same Brand, Different Boat

The Nitro 189 Sport 2010 vs Nitro Bay 1900 Tunnel 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 — Nitro 189 Sport 2010 at 19,3 ft versus Nitro Bay 1900 Tunnel 2005 at 19,0 ft. Weight tells a clearer story for trailering families: the Nitro 189 Sport 2010 tips the scales at 1 675 lbs — 1 543 lbs more than the Nitro Bay 1900 Tunnel 2005 at 132 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 200 hp, the Nitro 189 Sport 2010 has a 50-hp advantage over the Nitro Bay 1900 Tunnel 2005'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 Nitro Bay 1900 Tunnel 2005 carries 47 gallons versus 31 gallons in the Nitro 189 Sport 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 6 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 Nitro 189 Sport 2010 and its 200-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Nitro Bay 1900 Tunnel 2005 with its 150-hp rating is the more economical daily driver.
General Boat Info
MakeNitro
MakeNitro
Model189 Sport
ModelBay 1900 Tunnel
Model Year201
Model Year2005
Measurements / Dimensions
Beam93 in
Beam8 ft. 3 in
Beam - Meters2.36
Beam - Meters2.51
Beam - Inches93
Beam - Inches99
Deadrise16°
Deadrisenot available
Draft [max] - Detail15 in
Draft [max] - Detailnot available
Draft [max] - Meters0.38
Draft [max] - Metersnot available
Draft [max] - Inches15
Draft [max] - Inchesnot available
Weight - Detail1,675 lbs
Weight - Detail1,320 lbs
Weight - kg759.77
Weight - kg598.74
Weight - lbs.1675
Weight - lbs.132
Height [transom]22 in
Height [transom]20 in
Length - Feet19.33
Length - Feet19
Length overall - Detail19.33 ft
Length overall - Detail19 ft. 4 in
Length overall - Meters5.89
Length overall - Meters5.89
Length overall - Inches231.96
Length overall - Inches232
Length - Inchesnot available
Length - Inches4
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Engine/s standardMercury? 115 OptiMax?
Engine/s standardnot available
Fuel tank capacity - Detail31 gal
Fuel tank capacity - Detail47 gal
Fuel tank capacity - Liters117.35
Fuel tank capacity - Liters177.91
Fuel tank capacity - Gal31
Fuel tank capacity - Gal47
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typenot available
Engine max200 hp
Engine max150 hp
Operational Info
Maximum capacity1,500 lbs
Maximum capacity1,500 lbs
Maximum people6 / 750 lbs
Maximum people6
Trailer Info
Trailer - DetailNITRO? color coordinated single axle drive-on
Trailer - Detailnot available
Trailer - Length over allWith swing-away: 22 ft. 1 in
Trailer - Length over all24 ft. 0 in
Trailer - Weight2,815 lbs
Trailer - Weight2,400 lbs
Trailer - Widthnot available
Trailer - Width100 in

Nitro 189 Sport 2010 vs Nitro Bay 1900 Tunnel 2005 — Common Questions

Which is the larger boat — the Nitro 189 Sport 2010 or the Nitro Bay 1900 Tunnel 2005?
The Nitro 189 Sport 2010 is the longer of the two at 19,3 feet overall. The Nitro Bay 1900 Tunnel 2005 comes in at 19,0 feet, making it roughly 0,3 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Nitro 189 Sport 2010 or the Nitro Bay 1900 Tunnel 2005?
For trailering, the Nitro Bay 1900 Tunnel 2005 has the edge at 132 lbs dry weight versus 1 675 lbs for the Nitro 189 Sport 2010. 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 Nitro 189 Sport 2010 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Nitro Bay 1900 Tunnel 2005 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 Nitro 189 Sport 2010 is Coast Guard rated for 6 passengers, while the Nitro Bay 1900 Tunnel 2005 is certified for 6. 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 Nitro Bay 1900 Tunnel 2005 measures 99" wide, compared to 93" for the Nitro 189 Sport 2010. 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 Nitro 189 Sport 2010 or the Nitro Bay 1900 Tunnel 2005?
The Nitro Bay 1900 Tunnel 2005 has the bigger tank at 47 gallons, versus 31 gallons on the Nitro 189 Sport 2010. That 16-gallon difference translates to roughly 48–80 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Nitro 189 Sport 2010 and Nitro Bay 1900 Tunnel 2005 from the same manufacturer?
Yes — both the Nitro 189 Sport 2010 and the Nitro Bay 1900 Tunnel 2005 are built by Nitro. 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.