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We offer a 30-day return window on eligible items from the date of delivery. Products must be unused, in original condition, and returned in their original packaging. To start a return, contact us at support@adventuremotion.com or call (877) 834-4299. Return shipping costs may apply for non-defective items. Damaged or defective items are replaced at no cost to you.

Frequently Asked Questions

Do you offer financing?

Yes — we partner with Affirm so you can split your purchase into easy monthly payments with 0% APR options. Just select Affirm at checkout.

Are you an authorized dealer?

Yes. Adventure Motion is an authorized online dealer for all brands we carry. That means your manufacturer warranty is fully valid and protected.

Can you help me choose the right product?

Absolutely. Call us at (877) 834-4299 or email support@adventuremotion.com — our team specializes in outdoor gear and can match you to the right product.

What if my item arrives damaged?

Contact us within 48 hours of delivery at support@adventuremotion.com. We'll arrange a replacement at zero cost to you — no questions asked.

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The Mud Monster XL is the two-seat version of MotoTec's off-road kart, built around a 212cc four-stroke OHV engine producing 4.0 kW at 3,600 rpm and 12 Nm at 2,500 rpm. A CVT torque converter working with a centrifugal clutch and chain drive keeps the power smooth off the line, and a pull-start system gets the engine running without needing a battery.

Suspension is independent hydraulic at the front with twin hydraulic shocks at the rear, all bolted to a tubular steel frame. Low-pressure pneumatic tires, 145/70-6 at the front and a much wider 16x8-7 at the rear, add a second layer of cushioning while improving grip on soft ground. A foot-operated hydraulic disc at the rear brings the 242 lb kart to a stop.

Two people sit side by side, each held by a four-point harness inside a padded roll cage. The seat adjusts, the pedals are metal rather than plastic, and a kill switch sits within reach. MotoTec rates the XL for drivers 13 and older, up to 400 lbs of rider weight and around 67 inches of height. A rear storage rack carries gear, and the 3.6-liter tank keeps the four-stroke fed through longer sessions.

Ride Safe

  • Helmets and full safety gear are required for both occupants
  • Adult supervision is required whenever the kart is in use
  • Both four-point harnesses must be fastened before the kart moves
  • The kill switch shuts the engine down immediately if something goes wrong

⚠️ OFF-ROAD USE ONLY — NOT STREET LEGAL

This vehicle is designed exclusively for recreational off-road riding and is not street legal. It is intended for use on private property, dirt trails, motocross tracks, and designated off-road riding areas only. This product is NOT classified as a transportation vehicle and may not be operated on public roads, highways, sidewalks, bike lanes, or any public-access roadway. This product does not include a VIN, title, or registration and is sold strictly as recreational off-road sporting equipment. Always wear a DOT-approved helmet and appropriate protective gear. Off-road vehicle laws vary by state — riders are responsible for reviewing and complying with all applicable local regulations.

Engine & Drivetrain

  • Engine: 212cc 4-stroke OHV, EPA approved
  • Max Power: 4.0 kW @ 3,600 RPM
  • Max Torque: 12 Nm @ 2,500 RPM
  • Bore / Stroke: 70mm / 55mm
  • Compression Ratio: 8.5:1
  • Spark Plug: F6TC
  • Transmission: Automatic, centrifugal clutch with CVT torque converter (BANDO belt), chain drive
  • Starting: Easy pull start
  • Fuel Capacity: 3.6 liters
  • Engine Oil Capacity: 0.6 liters (10W-30)

Performance

  • Top Speed: 25 mph
  • Minimum Turning Diameter: 7 meters

Chassis & Brakes

  • Frame: Tubular steel
  • Suspension: Independent front hydraulic shocks, dual rear hydraulic shocks
  • Brake: Foot-operated hydraulic rear disc
  • Front Wheels: 145/70-6 pneumatic
  • Rear Wheels: 16x8-7 pneumatic
  • Safety Equipment: 4-point seat belt, padded roll bar, adjustable seat, kill switch

Size & Fit

  • Seating: 2 riders
  • Recommended Age: 13+
  • Max Rider Weight: 400 lbs
  • Recommended Max Rider Height: 67 inches

Dimensions & Weight

  • Kart Size: 68 x 45 x 48 inches
  • Wheelbase: 1250 mm
  • Ground Clearance: 80 mm
  • Kart Weight: 242 lbs
  • Packaged Size: 69 x 45 x 24 inches
  • Packaged Weight: 276 lbs

  • 212cc four-stroke OHV engine with a CVT torque converter for smooth pull
  • Seats two with four-point harnesses for both occupants
  • Padded roll cage and kill switch built into the chassis
  • Independent front and dual rear hydraulic suspension over a steel tube frame
  • Low-pressure 16x8-7 rear tires for grip and ride comfort on soft ground
  • 400 lb rider weight capacity and an adjustable seat
  • Rear storage rack for gear and fuel cans
  • Pull start with no battery required

MotoTec covers this unit with a 60-day parts-replacement warranty from the date of delivery against defects in materials and workmanship. Contact Adventure Motion support with your order number and photos of the issue to start a claim.

Normal wear items such as tires, tubes, brake pads, chains and batteries are not covered, and neither is damage from racing, jumping, collisions, improper assembly, modification, or riding beyond the rated limits.

How many people can ride at once?
Two. the xl has a side-by-side bench with a four-point harness for each occupant.
How fast is it?
Mototec lists a 25 mph top speed, with real-world speed depending on load and terrain.
What is the weight limit?
400 lbs of rider weight, with a recommended maximum rider height of about 67 inches.
Is it street legal?
No. it is an off-road recreational kart only and is not approved for public roads.
Does it need fuel mixed with oil?
No. the 212cc engine is a four-stroke and takes straight unleaded gasoline, with 0.6 liters of 10w-30 in the crankcase.
What age is it recommended for?
13 and up, with adult supervision whenever the kart is being used.

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