Folding Multi Sport Trailer – Flat Top & Box Sides | Bulldog Folding Trailers
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Box Top
box top foldedFolding Box Top Trailer in the fieldBoxTop TrailerFolding Multi Sport Box Top Trailer with with rack and kayak carriersKicking back at Manchester Lake, COCamping with the Folding Multi Sport Trailer Box Top

Folding Multi Sport Trailer – Flat Top & Box Sides

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            • Configurable for flat top use alone or flat top with box sides
            • For everyday utility use
            • Includes cross bars accessory
            • Folds and unfolds in minutes
            • Folded trailer storage dimensions: 54″high x 27″wide x 24″deep, plus crossbars. The flat top and box sides store flat against a wall in about the space of a 6′ folding table.
            • Rugged design for on- or off-road use and long-distance travel

The new Universal Bulldog Folding Trailer is here!  This exciting new model has a “universal” frame that can be configured for ALL of our Boat, Kayak, Motorcycle and Multi-sport trailers, just by changing accessory components. One frame – many possibilities!

The Folding Multi Sport Trailer with a flat top and box sides can haul just about anything you can imagine: Camping equipment, landscaping tools, furniture, and more. Some assembly is required. Read More

For a FREE consultation, call us at 1-866-892-4015.


Product Description


We can save you space Bulldog Folding Motorcycle TrailerThe Smartest Way to Haul Your Stuff (and Store Your Trailer)

Now you can haul just about anything without wondering where to store your trailer. Bulldog Folding Trailers fold up so small, storage is a breeze: Just wheel it into your garage, drop it into the bed of your truck, or keep it in the trunk of your car.

The patented multi-axis design is the envy of other so-called folding trailers. Those other trailers merely stand upright and shorten in length, they don’t fold lengthwise like Bulldog Folding Trailers.

As the world’s only true folding trailer, no disassembly is required: You can literally fold or unfold it in 60 seconds. And less time futzing with your trailer means more time putting it to work.

Flat Top and Box Top for Errands and Everyday Use

Your bulldog folding multi sport trailer can even be configured for hauling furniture, landscaping equipment, bicycles, camping gear, and more. Add the flat top alone, or the flat top plus box top sides, and your folding trailer is ready to go to work.

Innovation in Every Inch

At just 132 pounds, Bulldog Folding Trailers are easy to handle.

But don’t let the light weight fool you. Each Bulldog Folding Trailer is made of high-strength steel that’s hot dipped galvanized inside and out, and all fasteners are 304 stainless steel for extra yield and tensile strength.

All of this means that Bulldog Folding Trailers can withstand towing speeds and distances equal to that of traditional rigid motorcycle trailers, without taking up the space of an extra car in your garage or driveway.



  • Assembled in approximately 1-2 hours
  • Tools are included


12-Inch (Standard)

  • Rim dimensions: 12″ diameter x 4″ wide
  • Bolt pattern: 5 on 4½”
  • Tire size: 4.80-12
  • Outer diameter (when inflated): 20.7″
  • Ply rating: 4
  • Maximum load: 990 lbs. at 60 PSI

8-Inch (Optional)

  • Rim dimensions: 8″ diameter x 3¾” wide
  • Bolt pattern: 5 on 4½”
  • Tire size: 4.80-8
  • Outer diameter (when inflated): 16.1″
  • Ply rating: 4
  • Maximum load: 745 lbs. at 60 PSI


  • Powder coated (silver) steel rims


  • Ball size 2″
  • Static load 1653 lbs.
  • U.S. standard

Build Material:

  • Frame 195Q mild steel (yield strength 195MPa) hot dipped zinc plated
  • Fixings 304 stainless steel


  •  combination light includes license plate light

Electric Cable:

  • 4 core cable with plastic sheath

Electrical Car Connector:

  • 4 pin flat standard

Dimensions (Base Trailer):

  • Width unfolded – 63″
  • Length unfolded – 94.5″
  • Height unfolded – 20.7″
  • Width folded – bar to bar – 26.7″
  • Width folded wheel guard to wheel guard – 21.65″
  • Length folded – 55.1″
  • Height folded – 20.5″

Empty Trailer Weight for Flat Top & Box Sides:

  • 8″ tires  253 lbs.
  • 12″ tires 276 lbs.

Max Load for Flat Top & Box Sides: 

  • 8″ tires  739 lbs.
  • 12″ tires  716 lbs.

Gross Trailer Mass (GTM):

  • 992 lbs.

Additional Information

Tire Size

12-Inch Tire, 8-Inch Tire