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Sentry 650M
Length
21'
Max People
12
Max HP
175
Ready for Bigger Days.
The Great Lakes Sentry 650M takes the versatility of a family RIB and gives you more space, more power and more capability for bigger days on the water.
At 21 feet with an 8'6" beam and room for up to 12 people, the 650M gives families the space to bring everyone along — kids, friends, coolers, watersports gear and everything you need for a full day on the lake.
With up to 175 HP, a 20-degree deadrise and a large 150 L integrated fuel tank, the Sentry 650M is equally comfortable cruising to lunch, pulling the kids on a tube, exploring farther from home or spending the entire day swimming and relaxing on the water.
One Boat. Bigger Adventures.
From relaxed family cruising to tubing, swimming, exploring new shorelines and spending the entire day on the water, the Sentry 650M gives you the space and capability to bring everyone along.
MORE ROOM FOR EVERYONE
Spacious 21' layout • Up to 12 people • Plenty of room for gear
TAKE ON BIGGER WATER
150 L fuel tank • 20° deadrise • Big-water capability
BUILT FOR WATERSPORTS
Up to 175 HP • tow arch • Tubing and skiing
Colour Options
Break Water White
Calming Grey
Jet Grey
Great Lakes Blue
Break Water White
Calming Grey
Great Lakes Blue
Break Water White
1/4
Built for Years of Family Adventure
6-Year Aluminum Hull Warranty. Premium Achilles Hypalon.
Designed in Ontario.
Specifications and Features
Length Overall
21'
Internal Length
15'5"
Width Overall
8'6"
Internal Width
4'9"
Deadrise
20°
Number of Air Chambers
6
Tube Diameter
24"
Maximum People
12
Maximum Load
3,196 lbs
Boat Only Weight
1025 lbs
Fuel Tank Capacity
150 L
Maximum HP
175
Transom Length
XL
Standard Features
Mehler PVC or Achilles Hypalon Tube
Navigation Lights
T-Top
Tow Post or Arch
Suzuki Tachometer and Fuel Gauge
Bilge Pump Manual/Automatic
12 Volt Power Port/USB Port
Battery ON/OFF Switch
Fuel/Water Separator
Keel Guard
Powder-Coated Aluminum Hull
Flush-Mount Non-Return Valves
Bow Cushion
Bow Step
Integrated 150 L Fuel Tank
Hand Pump, Repair Kit, Safety Paddle, Fire Extinguisher
Lifting Points and Tow D-rings
Integrated Transom Support
Optional Features
Stereo
Courtesy Lights
Suzuki SMG4 GaugeGPS
Chart Plotter
Hydraulic Steering with Tilt
& More upon request
Model Comparison
ST520M
ST650M
Length Overall
21'
17'
Internal Length
15'5"
12'5"
Width Overall
8'6"
7'6"
Internal Width
57"
48"
Deadrise
20°
20°
Number of Air Chambers
6
5
Tube Diameter
24"
22"
Maximum People
12
10
Maximum Load
3,196 lbs
2,348 lbs
Boat Only Weight
1,025 lbs
872 lbs
Fuel Tank Capacity
150 L
100 L
Maximum HP
175
100
Transom Length
XL
L
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