Time to upgrade your mini bike powerplant? Now available 95mm Big Bore cylinder blocks in stock! See below



Magnetic Oil Drain Plug, Honda GX390

Bullfrog Motosport magnetic oil drain plug for Honda GX390 and big block clones.  Billet aluminum drain plug includes the copper gasket.  Our plug is a nice upgrade to catch any signs of engine trouble by catching the magnetic particles that may be in your engine oil.

Our Price: $11.95
Monster Moto Muddy Girl Mini Bike

We’ve partnered with our good friends at Moon Shine® Camo to create the all-new Muddy Girl® mini bike. Show them what it means to #ridelikeagirl with your 2.5 horsepower 80cc engine that has a top speed of 26 mph. Just like our other bikes, this rugged machine is built to last.

FEATURES

  • Simple to set up: Tool kit included. Attach the handlebars, add gas and go!
  • Easy to handle: The mini bike’s large comfortable seat, spring loaded foot pegs and motorcycle style throttle ensure a great ride.
  • Built to last: With a powder coated gusset reinforced welded tube steel frame and tough no-dent polypropylene fenders, our electric mini bike is durably constructed and ready for the rugged outdoors.
  • Safety first: With a chain guard, exhaust heat shield and engine stop switch, our mini bike was built with safety in mind.
  • Heavy Duty Overhead-Valve (OHV) Engine
  • Adjustable Handlebars
  • Super Grip Tires
  • Rear Disc Brake
  • Rugged, Reinforced Frame
  • Custom Monster Graphics Tough, No-dent polypropylene fenders
  • Larger Comfortable Seat

SPECIFICATIONS

  • Engine: 80cc 2.5 HP (4-stroke overhead valve)
  • Transmission: Automatic no-shift centrifugal force
  • Maximum Speed: 26 mph
  • Starter Type: Easy pull
  • Brake Type: Hand operated cable actuated rear disc
  • Tires & Wheels: 14.0 5.7 R 6.0 off-road tubeless pneumatic tires with steel rims
  • Run Time: 45-60 minutes (continuous use)

Our Price: $599.99
Sale Price: $449.99
Savings: $150.00
Monster Moto Real Tree Camo Mini Bike

Answer the call of the wild with our exclusive Realtree® Camo mini bike. It has all the features of our classic mini bike, with a color scheme that’s out of sight! It’s a safer, easier to ride upgrade from the mini bikes we rode long ago. With a welded, reinforced steel frame and an 80cc four-stroke engine, this mini bike is perfect for the hunter in all of us.


FEATURES

  • Simple to set up: Tool kit included. Attach the handlebars, add gas and go!
  • Easy to handle: The mini bike’s large comfortable seat, spring loaded foot pegs and motorcycle style throttle ensure a great ride.
  • Built to last: With a powder coated gusset reinforced welded tube steel frame and tough no-dent polypropylene fenders, our electric mini bike is durably constructed and ready for the rugged outdoors.
  • Safety first: With a chain guard, exhaust heat shield and engine stop switch, our mini bike was built with safety in mind.
  • Heavy Duty Overhead-Valve (OHV) Engine
  • Adjustable Handlebars
  • Super Grip Tires
  • Rear Disc Brake
  • Rugged, Reinforced Frame
  • Custom Monster Graphics Tough, No-dent polypropylene fenders
  • Larger Comfortable Seat

SPECIFICATIONS

  • Engine: 80cc 2.5 HP (4-stroke overhead valve)
  • Transmission: Automatic no-shift centrifugal force
  • Maximum Speed: 26 mph
  • Starter Type: Easy pull
  • Brake Type: Hand operated cable actuated rear disc
  • Tires & Wheels: 14.0 5.7 R 6.0 off-road tubeless pneumatic tires with steel rims
  • Run Time: 45-60 minutes (continuous use)

Our Price: $599.99
Sale Price: $449.99
Savings: $150.00
Monster Moto American Flag Mini Bike

Take a closer look ‘Merica. This is our brand new American Flag Mini Bike. You like the red, white and blue? So do we. And that’s why we created this bike. You don’t hide on this bike. You use your 80cc engine to kick dirt around and take names! Those aren’t decals on the fender. We hand water dip our patterns directly onto the unit. So go ahead and order it. But be prepared for all the neighborhood kids to stand and salute as you ride by. As they should.

FEATURES

  • Simple to set up: Tool kit included. Attach the handlebars, add gas and go!
  • Easy to handle: The mini bike’s large comfortable seat, spring loaded foot pegs and motorcycle style throttle ensure a great ride.
  • Built to last: With a powder coated gusset reinforced welded tube steel frame and tough no-dent polypropylene fenders, our electric mini bike is durably constructed and ready for the rugged outdoors.
  • Safety first: With a chain guard, exhaust heat shield and engine stop switch, our mini bike was built with safety in mind.
  • Heavy Duty Overhead-Valve (OHV) Engine
  • Adjustable Handlebars
  • Super Grip Tires
  • Rear Disc Brake
  • Rugged, Reinforced Frame
  • Custom Monster Graphics Tough, No-dent polypropylene fenders
  • Larger Comfortable Seat

SPECIFICATIONS

  • Engine: 80cc 2.5 HP (4-stroke overhead valve)
  • Transmission: Automatic no-shift centrifugal force
  • Maximum Speed: 26 mph
  • Starter Type: Easy pull
  • Brake Type: Hand operated cable actuated rear disc
  • Tires & Wheels: 14.0 5.7 R 6.0 off-road tubeless pneumatic tires with steel rims
  • Run Time: 45-60 minutes (continuous use)

Our Price: $599.99
Sale Price: $449.99
Savings: $150.00
95mm Big Bore Cylinder Block 7 Bolt Honda GX390

New from our Bullfrog Performance Products group is our 95mm Big Bore cylinder block. Our block is an OEM Honda GX390 that we have machined/sleeved to a 95mm bore. This block is a 7 bolt side cover and all Honda GX390 internals fit this block. Be sure to checkout our 95mm big bore piston kits along with head gaskets and connecting rods listed below.

Our Price: $595.00
Sale Price: $425.00
Savings: $170.00
Forged Piston Kit, Predator 212cc Hemi

Forged piston kit fits Predator 212cc Hemi engines. This forged piston fits the standard 70mm cylinder bore diameter. Our forged piston kit fits ARC Racing billet connecting rods part numbers 6252, 6254 and 6256 rods with the Predator 212cc standard wrist pin diameter. This forged piston kit will give your engine an 11:0:1 compression ratio with no other modifications. Kit comes with the forged piston, Total Seal low drag ring set, wire lock wrist pin locks and tool steel wrist pin.

Our Price: $158.00
Sale Price: $139.95
Savings: $18.05
Ported Cylinder Head Kit Big Block Clone

Our Pro Velocity cylinder head kits are fully machined, including milled cylinder deck surface, multi-angle valve job, ported and polished runners, flow tested on a Superflow flow bench to ensure port flow and velocity meets requirements, nitrided stainless steel valves with hardened tips, split style automotive type valve locks and billet aluminum valve spring retainers.

List Price: $325.95
Our Price: $295.00
Savings: $30.95
Monster Moto Classic Mini Bike

Make next weekend epic with our affordable and popular Classic Mini Bike. It’s just like the ones we used to have in the good ol’ days, only safer and easier to ride. Its 80cc overhead valve engine and automatic clutch ensure easy operation, while its rugged steel frame and no-dent fenders provide the toughness you need to conquer the outdoors. All of our mini bikes come pre-assembled. Just attach the handlebars, add gas and go!

FEATURES

  • Simple to set up: Tool kit included. Attach the handlebars, add gas and go!
  • Easy to handle: The mini bike’s large comfortable seat, spring loaded foot pegs and motorcycle style throttle ensure a great ride.
  • Built to last: With a powder coated gusset reinforced welded tube steel frame and tough no-dent polypropylene fenders, our electric mini bike is durably constructed and ready for the rugged outdoors.
  • Safety first: With a chain guard, exhaust heat shield and engine stop switch, our mini bike was built with safety in mind.
  • Heavy Duty Overhead-Valve (OHV) Engine
  • Adjustable Handlebars
  • Super Grip Tires
  • Rear Disc Brake
  • Rugged, Reinforced Frame
  • Custom Monster Graphics Tough, No-dent polypropylene fenders
  • Larger Comfortable Seat

SPECIFICATIONS

  • Engine: 80cc 2.5 HP (4-stroke overhead valve)
  • Transmission: Automatic no-shift centrifugal force
  • Maximum Speed: 26 mph
  • Starter Type: Easy pull
  • Brake Type: Hand operated cable actuated rear disc
  • Tires & Wheels: 14.0 5.7 R 6.0 off-road tubeless pneumatic tires with steel rims
  • Run Time: 45-60 minutes (continuous use)

Our Price: $499.99
Sale Price: $399.99
Savings: $100.00