Mariah G21  2009 boat specs
Mariah
Mariah G21 2009
2009
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Mariah SX21 Bow Rider 2006 boat specs
Mariah
Mariah SX21 Bow Rider 2006
2006
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Mariah G21 2009 vs Mariah SX21 Bow Rider 2006 — Same Brand, Different Boat

The Mariah G21 2009 vs Mariah SX21 Bow Rider 2006 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 — Mariah G21 2009 at 2,0 ft versus Mariah SX21 Bow Rider 2006 at 2,0 ft. At 39 lbs and 31 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 — 270 hp for the Mariah G21 2009 and 260 hp for the Mariah SX21 Bow Rider 2006. 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 carry nearly identical fuel loads — 44 gal and 44 gal — so range won't be a tiebreaker here.

Both boats are rated for 1 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 Mariah SX21 Bow Rider 2006 comes in at 0 lbs per hp versus 0 lbs per hp for the Mariah G21 2009. 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 Mariah G21 2009 has a documented top speed of 41 mph. Speed data wasn't available for the other model.

Bottom line: The Mariah G21 2009 and Mariah SX21 Bow Rider 2006 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeMariah
MakeMariah
ModelG21
ModelSX21 Bow Rider
Model Year2009
Model Year2006
Measurements / Dimensions
Beam8 ft. 6 in. (2.6 m)
Beam8 ft. 6 in. (2.6 m)
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Deadrise20℃
Deadrise20℃
Weight - Detail3,300 lbs. (1,497 kg) Maximum: 3,900 lbs. (1,769 kg)
Weight - Detail3,100 lbs. (1,406 kg)
Weight - kg1769.01
Weight - kg1406.14
Weight - lbs.39
Weight - lbs.31
Length - Meters6.1
Length - Meters6.1
Length - Feet2
Length - Feet2
Length - Inches9
Length - Inches9
Length overall - Detail20 ft. 9 in. (6.1 m)
Length overall - Detail20 ft. 9 in. (6.1 m)
Length overall - Meters6.32
Length overall - Meters6.32
Length overall - Inches249
Length overall - Inches249
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Fuel tank capacity - Detail44 gal. (167 l)
Fuel tank capacity - Detail44 gal. (167 l)
Fuel tank capacity - Liters166.56
Fuel tank capacity - Liters166.56
Fuel tank capacity - Gal44
Fuel tank capacity - Gal44
Fuel typeGas
Fuel typeGas
Drive typeI/O
Drive typeI/O
Engine max270 hp (201 kW)
Engine max260 hp (194 kW)
Performance
Maximum speed41-52 mph
Maximum speednot available
Operational Info
Maximum capacity1,750 lbs. (794 kg)
Maximum capacity1,750 lbs. (794 kg)
Maximum people1
Maximum people1

Mariah G21 2009 vs Mariah SX21 Bow Rider 2006 — Common Questions

Which is the larger boat — the Mariah G21 2009 or the Mariah SX21 Bow Rider 2006?
The Mariah SX21 Bow Rider 2006 is the longer of the two at 2,0 feet overall. The Mariah G21 2009 comes in at 2,0 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 Mariah G21 2009 or the Mariah SX21 Bow Rider 2006?
For trailering, the Mariah SX21 Bow Rider 2006 has the edge at 31 lbs dry weight versus 39 lbs for the Mariah G21 2009. 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 Mariah G21 2009 is rated to a maximum of 270 hp, giving it the larger power ceiling. The Mariah SX21 Bow Rider 2006 tops out at 260 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 Mariah G21 2009 is Coast Guard rated for 1 passengers, while the Mariah SX21 Bow Rider 2006 is certified for 1. 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 Mariah SX21 Bow Rider 2006 has a better power-to-weight ratio at 0 lbs per hp compared to 0 lbs per hp for the Mariah G21 2009. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Mariah G21 2009 and Mariah SX21 Bow Rider 2006 share an 8 ft. 6 in. (2.6 m) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
How do the fuel tanks compare on the Mariah G21 2009 and Mariah SX21 Bow Rider 2006?
Both boats carry similar fuel loads — 44 gallons and 44 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Mariah G21 2009 and Mariah SX21 Bow Rider 2006 from the same manufacturer?
Yes — both the Mariah G21 2009 and the Mariah SX21 Bow Rider 2006 are built by Mariah. 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.