Detailed Evaluation & Buyer Recommendation
Maxum 1800SR3 Sport Boat 2005 vs Maxum 2100 SD 2007 — Same Brand, Different Boat
The Maxum 1800SR3 Sport Boat 2005 vs Maxum 2100 SD 2007 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 Maxum 2100 SD 2007 tops out at 300 hp. Engine specs for the Maxum 1800SR3 Sport Boat 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Maxum 2100 SD 2007 carries 55 gallons versus 28 gallons in the Maxum 1800SR3 Sport Boat 2005. 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 Maxum 2100 SD 2007 is rated for 6 passengers, while the Maxum 1800SR3 Sport Boat 2005 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Maxum 2100 SD 2007 could be the deciding factor.
Bottom line: Choose the Maxum 2100 SD 2007 if your priority is putting more people on the water — it handles 6 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Maxum 1800SR3 Sport Boat 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
Model1800SR3 Sport Boat
Model2100 SD
Model Year2005
Model Year2007
Measurements / Dimensions
Beam7 ft. 7 in. (2.31 m)
Beam8 ft. 6 in. (2.59 m)
Beam - Meters2.31
Beam - Meters2.59
Beam - Inches91
Beam - Inches102
Bridge clearance - Detail3 ft. 6 in. (1.07 m)
Bridge clearance - DetailMax: 4 ft. 10 in. (1.47 m)
Bridge clearance - Meters1.07
Bridge clearance - Meters1.47
Bridge clearance - Inches42
Bridge clearance - Inches58
Deadrise17℃
Deadrise20℃
Draft [drive up] - Detail1 ft. 8 in. (.51 m)
Draft [drive up] - Detail1 ft. 7 in. (0.48 m)
Draft [drive up] meters0.51
Draft [drive up] meters0.48
Draft [drive up] inches2
Draft [drive up] inches19
Draft [max] - Detail3 ft. 0 in. (.91 m)
Draft [max] - Detail3 ft. (0.91 m)
Draft [max] - Meters0.91
Draft [max] - Meters0.91
Draft [max] - Inches36
Draft [max] - Inches36
Weight - Detail2,500 lbs. (1,134 kg) w/Std. Engine
Weight - DetailWith standard engine: 3,953 lbs. (1,793 kg)
Weight - kg1133.98
Weight - kg1793.05
Weight - lbs.25
Weight - lbs.3953
Length [over all with swim platform]20 ft. 1 in. (6.12 m)
Length [over all with swim platform]23 ft. 3 in. (7.09 m)
Length overall - Detail18 ft. 9 in. (5.49 m)
Length overall - Detail21 ft. 1 in. (6.43 m)
Length overall - Meters5.72
Length overall - Meters6.43
Length overall - Inches225
Length overall - Inches253
Length - Metersnot available
Length - Meters6.43
Length - Feetnot available
Length - Feet21
Length - Inchesnot available
Length - Inches1
Engine and Drivetrain
Fuel tank capacity - Detail28 gal. (106 l)
Fuel tank capacity - Detail55 gal. (208.2 l)
Fuel tank capacity - Liters105.99
Fuel tank capacity - Liters208.2
Fuel tank capacity - Gal28
Fuel tank capacity - Gal55
Engine/s standardnot available
Engine/s standard220 hp
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeInboard
Engine maxnot available
Engine max300 hp
Trailer Info
Trailer - Height6 ft. 3 in. (1.91 m)
Trailer - Heightnot available
Trailer - Length over all23 ft. 3 in. (7.09 m)
Trailer - Length over allRigged: 27 ft. 4 in. (8.33 m)
Trailer - Weight3,160 lbs. (1,433 kg) w/Std. Engine
Trailer - WeightWith standard engine: 5,153 lbs. (2,337 kg)
Trailer - Width8 ft. 1 in. (2.46 m)
Trailer - Width8 ft. 6 in. (2.59 m)
Body / Hull
Hull materialnot available
Hull materialFiberglass
Operational Info
Water capacitynot available
Water capacity10 gal. (37.9 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Detail3 gal. (11.36 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters11.36
Holding tank capacity - Galnot available
Holding tank capacity - Gal3