South Bay 620C 2008 boat specs
South Bay
South Bay 620C 2008
2008
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VS
South Bay 925CPTR TT I/O 2008 boat specs
South Bay
South Bay 925CPTR TT I/O 2008
2008
View full specs →

South Bay 620C 2008 vs South Bay 925CPTR TT I/O 2008 — Same Brand, Different Boat

The South Bay 620C 2008 vs South Bay 925CPTR TT I/O 2008 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.

Size is the most obvious dividing line here. The South Bay 925CPTR TT I/O 2008 measures 26,0 feet overall (2008), giving it roughly 24,0 additional feet of deck space compared to the South Bay 620C 2008 at 2,0 feet (2008). Weight tells a clearer story for trailering families: the South Bay 925CPTR TT I/O 2008 tips the scales at 3 125 lbs — 2 930 lbs less than the South Bay 620C 2008 at 195 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 525 hp, the South Bay 925CPTR TT I/O 2008 has a 435-hp advantage over the South Bay 620C 2008's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the South Bay 925CPTR TT I/O 2008 carries 39 gallons versus 18 gallons in the South Bay 620C 2008. 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 South Bay 925CPTR TT I/O 2008 is rated for 14 passengers, while the South Bay 620C 2008 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the South Bay 925CPTR TT I/O 2008 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The South Bay 620C 2008 comes in at 2 lbs per hp versus 6 lbs per hp for the South Bay 925CPTR TT I/O 2008. 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 South Bay 925CPTR TT I/O 2008 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The South Bay 620C 2008 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.

Bottom line: Choose the South Bay 925CPTR TT I/O 2008 if your priority is putting more people on the water — it handles 14 passengers and at 26,0 ft it has the deck room to back that rating up comfortably. The South Bay 620C 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 11 that costs less to run day-to-day.
General Boat Info
MakeSouth Bay
MakeSouth Bay
Model620C
Model925CPTR TT I/O
Model Year2008
Model Year2008
Measurements / Dimensions
Beam8 ft. 6 in
Beam8 ft. 6 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Weight - Detail1,950 lbs
Weight - Detail3,125 lbs
Weight - kg884.5
Weight - kg1417.48
Weight - lbs.195
Weight - lbs.3125
Length [deck]19 ft. 8 in
Length [deck]24 ft. 7 in
Length - Feet2
Length - Feet26
Length - Inches9
Length - Inches4
Length overall - Detail20 ft. 9 in
Length overall - Detail26 ft. 4 in
Length overall - Meters6.32
Length overall - Meters8.03
Length overall - Inches249
Length overall - Inches316
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter25 in
Tube diameter25 in
Number of tubes2
Number of tubes3
Engine and Drivetrain
Fuel tank capacity - Detail18 gal
Fuel tank capacity - Detail39 gal
Fuel tank capacity - Liters68.14
Fuel tank capacity - Liters147.63
Fuel tank capacity - Gal18
Fuel tank capacity - Gal39
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeI/O
Engine max90 hp
Engine max525 hp
Operational Info
Maximum capacity2,080 lbs
Maximum capacity3,265 lbs
Maximum people11 / 1,575 lbs
Maximum people14 / 1,910 lbs
Water capacitynot available
Water capacity8 gal. freshwater tank with 12V pump

South Bay 620C 2008 vs South Bay 925CPTR TT I/O 2008 — Common Questions

Which is the larger boat — the South Bay 620C 2008 or the South Bay 925CPTR TT I/O 2008?
The South Bay 925CPTR TT I/O 2008 is the longer of the two at 26,0 feet overall. The South Bay 620C 2008 comes in at 2,0 feet, making it roughly 24,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the South Bay 620C 2008 or the South Bay 925CPTR TT I/O 2008?
For trailering, the South Bay 620C 2008 has the edge at 195 lbs dry weight versus 3 125 lbs for the South Bay 925CPTR TT I/O 2008. 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 South Bay 925CPTR TT I/O 2008 is rated to a maximum of 525 hp, giving it the larger power ceiling. The South Bay 620C 2008 tops out at 90 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 South Bay 620C 2008 is Coast Guard rated for 11 passengers, while the South Bay 925CPTR TT I/O 2008 is certified for 14. 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the South Bay 620C 2008 and South Bay 925CPTR TT I/O 2008 share an 8 ft. 6 in 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.
Which boat has the larger fuel tank — the South Bay 620C 2008 or the South Bay 925CPTR TT I/O 2008?
The South Bay 925CPTR TT I/O 2008 has the bigger tank at 39 gallons, versus 18 gallons on the South Bay 620C 2008. That 21-gallon difference translates to roughly 63–105 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the South Bay 620C 2008 and South Bay 925CPTR TT I/O 2008 from the same manufacturer?
Yes — both the South Bay 620C 2008 and the South Bay 925CPTR TT I/O 2008 are built by South Bay. 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.