Finally, one boat actually does it all! The combination of an Allison exclusive bass boat interior with a world record-holding, history making hull design, make the ProSport 21 second to none in perfomrance, efficiency, comfort and versatility.

The ProSport offers a list of features not available on other bass boats. Its huge casting decks – 60 sq ft – contain multiple tackle storage compartments, a state of the art live well system, as well as above deck rod storage trays that place up to eight rods in easy access but not under foot.

As for comfort, this boat is truly in a class by itself with maximum wind protection, incomparable ergonomics and a ride like no other bass boa


Overall Length

21′ 2″


1250 – 1290 lbs

Hole Shot

3 seconds

Rod Capacity

10+ rods

Built-in cooler



19′ 9″


27 gal

Recommended HP

225 HP


75 cu ft




160 – 190 miles


35 gal

Casting decks

60 sq ft


  • Patented Ultra-low-drag Hull Design
  • All Composite (Rot Proof) Unibody Construction
  • Exclusive Composite Transom
  • Allison Manual Jackplate (Adjusts from Inside the Boat)
  • Allison Custom Designed Sea Star Tournament Series® Hydraulic Steering
  • Allison Automotive Style Gear Shifter
  • Allison Custom Hot Foot Throttle
  • Sport Steering Wheel With Signal Lever Trim Switch
  • Allison Automotive Style Recessed Instrument Panel and Gauges
  • Patented Skid Planer (Helps Boat Plane Twice as Quick)
  • 1000 GPH Bilge Pump
  • 27 Gallon Fuel Tank
  • Battery Tray for Starting Battery
  • Navigation Bow Light
  • Stern Light Receptacle
Electronics & Instrumentation
  • Analog Tachometer, Water Pressure, Trim, and Fuel Gauges
  • Wiring Harness w/Master Breaker
Comfort, Convenience, & Safety
  • Adjustable Driver Bucket Seat
  • Passenger Bucket Seat
  • Seat Bases
  • Built-in Bench Seat w/Under Seat Trash Receptacle
  • Carpeted Deck w/Storage Compartments
  • Storage Compartments w/Flush Mounted Lid Locks
  • Gas Spring Lid Assists
  • Carpeted Cockpit Floor
  • Molded-in Driver & Passenger Carpeted Footrests
  • Integrated Glovebox in Center Console
  • Integrated Drink Holders
  • Passenger Assist Handle
  • Bow Assist Handle
  • Rubber Non-Skid Step Pads on Bow
  • Textured Non-Skid Interior and Deck Sides
  • Bow and Stern Eyes
  • Stainless Steel Boat Cleats
  • Manual Drain Plug
  • Built-in Fire Extinguisher Holder
  • Horn
  • Short (Quick-Change) Windshields
  • Custom Channel Trailer Single Axle 
  • Black 5″ Channel Frame
  • Stainless Steel Fenders w/Rubber Non-Skid Step Pads
  • Aluminum Tread on Bow Step (Channel Trailer Only)
  •  Alloy Wheels w/Radial Black-wall Tires
  • Spare Tire Carrier
  • Trailer Buddy® Gold Series Oil Bath Bearing Protector Hubs
  • Hydraulic Surge Disc Brakes w/Electric Back-up Release
  • Swing-away Tongue
  • Fulton Heavy Duty Center-swing Jack
  • Leaf Spring Axles
  • Retractable Trailer Tie-downs
  • Bow Safety Latch Turnbuckle
  • Bow Keel Roller
  • LED Lighting


The seven years of development required to perfect the XB-21 bass boat hull is a prime example of the tenacity devoted to perfecting fishing boat performance and efficiency at Allison Boats. The XB-21 ProSport bass boat provides the same distinguishing excitement from top-end speed and superior rough water handling as all other Allison Boats have before. After tirelessly testing and re-designing to attain easy handling, superior rough water capability, unequaled load carrying ability, and blistering top-end speeds, there was still one test that was not up to standard. The hole shot. A whole new regimen of testing was required. Two years later with a brand new patented design, the XB-21 bass boat had a better hole shot than any other 21′ class boat.

“You can have it all”
“…XB-21 is one of the best-riding and fastest bass boats we have run. Seven years in development, its layout is loaded with innovations . . . . . the console design is so refined you can carry on a conversation in a normal voice while running at speed. Even in a nasty chop, the ride is exceedingly smooth . . . , and a Mercury 200 XS can push the hull beyond 82 mph. For speed and comfort, few boats can hold a candle to the Alli— our pick for the most unique and effective new boat design in the past 10 years.”
– Article: Sea of Change, written by Jim Barron
– April 2004, Bass & Walleye Boats Magazine, pg. 32

The XB-21 ProSport bass boat features:

  • Huge 32 sq. ft. front and 24 sq. ft. rear pro casting decks for great fishing
  • Vinyl textured and fully carpeted interior
  • Dual center console for driver and passenger wind protection
  • Removable rear bench seat available to carry up to 5 people
  • Top deck rod storage
  • 6 stainless steel studs to mount the aluminum jack plate
  • Elite three color gel coat available