South Bay 925CLR TT I/O 2008 boat specs
South Bay
South Bay 925CLR TT I/O 2008
2008
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South Bay 928SL TT 2010 boat specs
South Bay
South Bay 928SL TT 2010
2010
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South Bay 925CLR TT I/O 2008 vs South Bay 928SL TT 2010 — A Close Look at Two Pontoons

When two boats share the same hull type — in this case both the South Bay 925CLR TT I/O 2008 and the South Bay 928SL TT 2010 are pontoon designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — South Bay 925CLR TT I/O 2008 at 26,0 ft versus South Bay 928SL TT 2010 at 28,6 ft. Weight tells a clearer story for trailering families: the South Bay 925CLR TT I/O 2008 tips the scales at 3 125 lbs — 3 089 lbs more than the South Bay 928SL TT 2010 at 36 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 925CLR TT I/O 2008 has a 225-hp advantage over the South Bay 928SL TT 2010's 300-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 928SL TT 2010 carries 54 gallons versus 39 gallons in the South Bay 925CLR TT I/O 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 928SL TT 2010 is rated for 17 passengers, while the South Bay 925CLR TT I/O 2008 caps at 14. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the South Bay 928SL TT 2010 could be the deciding factor.

One place where both boats are genuinely identical is tube construction: both run 3 aluminum tubes at 25" diameter. That shared spec means stability and buoyancy characteristics are closely matched — the ride difference you'll feel between them comes primarily from deck length, weight distribution, and motor choice.

Bottom line: Choose the South Bay 928SL TT 2010 if your priority is putting more people on the water — it handles 17 passengers and at 28,6 ft it has the deck room to back that rating up comfortably. The South Bay 925CLR TT I/O 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 14 that costs less to run day-to-day.
General Boat Info
MakeSouth Bay
MakeSouth Bay
Model925CLR TT I/O
Model928SL TT
Model Year2008
Model Year201
Measurements / Dimensions
Beam8 ft. 6 in
Beam8 ft. 6 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Weight - Detail3,125 lbs
Weight - Detail3,600 lbs
Weight - kg1417.48
Weight - kg1632.93
Weight - lbs.3125
Weight - lbs.36
Length [deck]24 ft. 7 in
Length [deck]27 ft. 9 in
Length - Feet26
Length - Feet28.58
Length - Inches4
Length - Inchesnot available
Length overall - Detail26 ft. 4 in
Length overall - Detail28 ft. 7 in
Length overall - Meters8.03
Length overall - Meters8.71
Length overall - Inches316
Length overall - Inches343
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typePontoon
Hull typePontoon
Pontoon and Inflatable Specific
Tube diameter25 in
Tube diameter25 in
Number of tubes3
Number of tubes3
Engine and Drivetrain
Fuel tank capacity - Detail39 gal
Fuel tank capacity - Detail54 gal
Fuel tank capacity - Liters147.63
Fuel tank capacity - Liters204.41
Fuel tank capacity - Gal39
Fuel tank capacity - Gal54
Fuel typeGas
Fuel typeGas
Drive typeI/O
Drive typeOutboard
Engine max525 hp
Engine max300 hp
Operational Info
Water capacity8 gal. freshwater tank with 12V pump
Water capacity8 gal
Maximum capacity3,265 lbs
Maximum capacity3,130 lbs
Maximum people14 / 1,910 lbs
Maximum people17 / 2,370 lbs

South Bay 925CLR TT I/O 2008 vs South Bay 928SL TT 2010 — Common Questions

Which is the larger boat — the South Bay 925CLR TT I/O 2008 or the South Bay 928SL TT 2010?
The South Bay 928SL TT 2010 is the longer of the two at 28,6 feet overall. The South Bay 925CLR TT I/O 2008 comes in at 26,0 feet, making it roughly 2,6 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the South Bay 925CLR TT I/O 2008 or the South Bay 928SL TT 2010?
For trailering, the South Bay 928SL TT 2010 has the edge at 36 lbs dry weight versus 3 125 lbs for the South Bay 925CLR 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 925CLR TT I/O 2008 is rated to a maximum of 525 hp, giving it the larger power ceiling. The South Bay 928SL TT 2010 tops out at 300 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 925CLR TT I/O 2008 is Coast Guard rated for 14 passengers, while the South Bay 928SL TT 2010 is certified for 17. 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 925CLR TT I/O 2008 and South Bay 928SL TT 2010 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 925CLR TT I/O 2008 or the South Bay 928SL TT 2010?
The South Bay 928SL TT 2010 has the bigger tank at 54 gallons, versus 39 gallons on the South Bay 925CLR TT I/O 2008. That 15-gallon difference translates to roughly 45–75 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the South Bay 925CLR TT I/O 2008 and South Bay 928SL TT 2010 from the same manufacturer?
Yes — both the South Bay 925CLR TT I/O 2008 and the South Bay 928SL TT 2010 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.