Triton Boats 1870 Bay Sport 2007 vs Triton Boats 21 TRX 2018 - Boat Spec Comparison

Q: Which is the larger boat — the Triton Boats 1870 Bay Sport 2007 or the Triton Boats 21 TRX 2018?

The Triton Boats 21 TRX 2018 is the longer of the two at 21,0 feet overall. The Triton Boats 1870 Bay Sport 2007 comes in at 18,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: What is the maximum horsepower rating for these boats?

The Triton Boats 1870 Bay Sport 2007 has a documented max rating of 115 hp. Engine specifications for the Triton Boats 21 TRX 2018 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.

Q: How many people can each boat hold?

The Triton Boats 1870 Bay Sport 2007 is Coast Guard rated for 6 passengers, while the Triton Boats 21 TRX 2018 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.

Q: Which boat has the larger fuel tank — the Triton Boats 1870 Bay Sport 2007 or the Triton Boats 21 TRX 2018?

The Triton Boats 21 TRX 2018 has the bigger tank at 47 gallons, versus 3 gallons on the Triton Boats 1870 Bay Sport 2007. That 44-gallon difference translates to roughly 132–220 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Triton Boats 1870 Bay Sport 2007 and Triton Boats 21 TRX 2018 from the same manufacturer?

Yes — both the Triton Boats 1870 Bay Sport 2007 and the Triton Boats 21 TRX 2018 are built by Triton Boats. 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.

Boat Comparison

Triton Boats 1870 Bay Sport 2007 vs Triton Boats 21 TRX 2018

Triton Boats

Triton Boats 1870 Bay Sport 2007

2007

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Triton Boats

Triton Boats 21 TRX 2018

2018

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Detailed Evaluation & Buyer Recommendation

Triton Boats 1870 Bay Sport 2007 vs Triton Boats 21 TRX 2018 — Same Brand, Different Boat

The Triton Boats 1870 Bay Sport 2007 vs Triton Boats 21 TRX 2018 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.

The Triton Boats 1870 Bay Sport 2007 carries a rated maximum of 115 hp. Engine data for the Triton Boats 21 TRX 2018 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Triton Boats 21 TRX 2018 carries 47 gallons versus 3 gallons in the Triton Boats 1870 Bay Sport 2007. 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: The Triton Boats 21 TRX 2018 at 21,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Triton Boats 1870 Bay Sport 2007 at 18,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.

General Boat Info

MakeTriton Boats

Makenot available

Model1870 Bay Sport

Modelnot available

Model Year2007

Model Yearnot available

Measurements / Dimensions

Beam98 in

Beamnot available

Beam - Meters2.49

Beam - Metersnot available

Beam - Inches98

Beam - Inchesnot available

Depth - Detail27 in

Depth - Detailnot available

Depth - Centimeters68.58

Depth - Centimetersnot available

Depth - Inches27

Depth - Inchesnot available

Weight - Detail1,186 lbs

Weight - Detailnot available

Weight - kg537.96

Weight - kgnot available

Weight - lbs.1186

Weight - lbs.not available

Width [transom] - Detail70 in

Width [transom] - Detailnot available

Height [transom]20 in

Height [transom]not available

Length - Feet18

Length - Feet21

Length overall - Detail18 ft. 0 in

Length overall - Detail21.00 ft

Length overall - Meters5.49

Length overall - Meters6.4

Length overall - Inches216

Length overall - Inches252

Body / Hull

Hull materialAluminum

Hull materialnot available

Hull thickness100 ga

Hull thicknessnot available

Engine and Drivetrain

Fuel tank capacity - Detail30 gal

Fuel tank capacity - Detailnot available

Fuel tank capacity - Liters113.56

Fuel tank capacity - Liters177.91

Fuel tank capacity - Gal3

Fuel tank capacity - Gal47

Fuel typeGas

Drive typeOutboard

Drive typeoutboard

Engine max115 hp

Engine maxnot available

Operational Info

Maximum people6

Maximum peoplenot available

Boat typenot available

Boat typePower

Trailer Info

Trailer - DetailStandard

Trailer - Detailnot available

Triton Boats 1870 Bay Sport 2007 vs Triton Boats 21 TRX 2018 — Common Questions

Which is the larger boat — the Triton Boats 1870 Bay Sport 2007 or the Triton Boats 21 TRX 2018?

The Triton Boats 21 TRX 2018 is the longer of the two at 21,0 feet overall. The Triton Boats 1870 Bay Sport 2007 comes in at 18,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

What is the maximum horsepower rating for these boats?

The Triton Boats 1870 Bay Sport 2007 has a documented max rating of 115 hp. Engine specifications for the Triton Boats 21 TRX 2018 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.

How many people can each boat hold?

The Triton Boats 1870 Bay Sport 2007 is Coast Guard rated for 6 passengers, while the Triton Boats 21 TRX 2018 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 has the larger fuel tank — the Triton Boats 1870 Bay Sport 2007 or the Triton Boats 21 TRX 2018?

The Triton Boats 21 TRX 2018 has the bigger tank at 47 gallons, versus 3 gallons on the Triton Boats 1870 Bay Sport 2007. That 44-gallon difference translates to roughly 132–220 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Triton Boats 1870 Bay Sport 2007 and Triton Boats 21 TRX 2018 from the same manufacturer?

Yes — both the Triton Boats 1870 Bay Sport 2007 and the Triton Boats 21 TRX 2018 are built by Triton Boats. 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.

← Triton Boats 1870 Bay Sport 2007 full specs ← Triton Boats 21 TRX 2018 full specs