TrailMaster Mini XRX+ 163cc 7HP Gas Go-Kart – Automatic with Reverse

Adjustable Youth Go-Kart with Parent Speed Control, Remote Kill Switch & Full Suspension

The TrailMaster Mini XRX+ is designed to grow with young riders, combining a generously sized frame, wider seating, adjustable pedals, and a sliding seat to accommodate children approximately 4–10 years old.

Powered by a reliable 163cc, 7HP air-cooled 4-stroke engine, the Mini XRX+ features both electric start and a pull-start backup. Its fully automatic transmission with reverse and centrifugal clutch makes operation straightforward, while the two-wheel-drive live rear axle provides power to the rear wheels.

Parents can control the kart's performance as riders gain confidence. Two adjustable throttle limiters allow the maximum speed to be restricted to approximately 8–13 mph, while the remote kill switch provides a convenient way to shut off the engine from a distance.

The kart also features dual A-arm front suspension, rear coil-over shocks, dual high-back seats, a 5-point safety harness, hydraulic rear disc brake, LED headlight, horn, cargo rack, and a heavy-duty frame for recreational off-road use.

Key Features

Designed for Growing Riders

The Mini XRX+ features an adjustable seating and pedal system designed to accommodate young riders as they grow.

• Recommended for kids ages 4–10


• Generously sized frame


• Wider seat


• Tall stance


• Sliding adjustable seat


• Adjustable pedals


• Seat-to-pedal range: 30–35 inches


• Pedal adjustment: approximately ±3–6 inches

Parent-Controlled Speed Limiting

Two adjustable throttle limiters allow parents to control the kart's maximum speed while young riders develop confidence.

• Adjustable throttle limiters


• Approximate speed range: 8–13 mph


• Maximum listed speed: approximately 13 mph


• Allows speed to be adjusted as rider confidence increases

Remote Kill Switch

The remote kill switch gives parents an additional level of control during supervised riding.

• Remote engine shut-off


• Quick emergency shutdown


• Allows the engine to be stopped from a distance

163cc 7HP 4-Stroke Engine

The air-cooled 4-stroke engine provides gas-powered performance for recreational off-road riding.

• 163cc displacement


• 7HP @ 3,600 RPM


• 4-stroke design


• Air-cooled


• Approximately 8 lb-ft torque @ 3,600 RPM


• Electric start


• Pull-start backup

Fully Automatic Transmission with Reverse

The automatic drivetrain makes the kart straightforward to operate while reverse improves maneuverability.

• Fully automatic transmission


• Reverse gear


• Centrifugal clutch


• Chain drive


• Two-wheel drive


• Live rear axle

Full Suspension

The suspension system is designed to help absorb bumps and improve ride comfort over suitable off-road terrain.

• Dual A-arm front suspension


• Rear coil-over shocks


• Oil-dampened shocks


• Full suspension system

Dual High-Back Seats & 5-Point Harness

The Mini XRX+ features dual high-back seating and a 5-point safety harness system.

• Dual high-back seats


• 5-point safety harness


• Seating for two riders as specified


• Adjustable seating position

Always follow the manufacturer's requirements regarding passenger use, rider weight, and harness operation.

Hydraulic Rear Disc Brake

The hydraulic rear disc brake provides responsive stopping control.

• Hydraulic rear disc brake


• Designed for controlled stopping


• Suitable for supervised recreational riding

Heavy-Duty Off-Road Frame

A rugged frame and live rear axle support the kart's recreational off-road design.

• Heavy-duty frame


• Live rear axle


• Two-wheel drive


• Rugged construction


• 4.0-inch minimum ground clearance

Trail-Ready Accessories

The Mini XRX+ includes practical features for recreational riding.

• LED headlight


• Horn


• Cargo rack


• Adjustable seating


• Large off-road tires

Technical Specifications

Specification	Details
Brand	TrailMaster
Model	Mini XRX+
Product Type	Youth Gas Go-Kart
Recommended Age	4–10 years
Engine	163cc, 4-Stroke
Horsepower	7 HP @ 3,600 RPM
Cooling	Air-Cooled
Torque	Approx. 8 lb-ft @ 3,600 RPM
Starting System	Electric Start + Pull-Start Backup
Transmission	Fully Automatic with Reverse
Clutch	Centrifugal
Drive Train	Chain
Drive	2-Wheel Drive
Rear Axle	Live Rear Axle
Suspension	Dual A-Arm / Oil-Dampened Shocks
Brakes	Hydraulic Rear Disc
Speed Limit	Adjustable, approx. 13 mph maximum
Adjustable Speed Range	Approx. 8–13 mph
Seat-to-Pedal Range	30–35 in
Pedal Adjustment	Approx. ±3–6 in
Seating	Dual High-Back Seats
Safety Harness	5-Point
Maximum Load	Approx. 300 lb
Fuel Capacity	1.2 gal
Wheelbase	42.6 in
Minimum Ground Clearance	4.0 in
Battery	12V, 9Ah
Front Tires	145 × 70-6
Rear Tires	16 × 8-7
Headlight	LED
Cargo Rack	Yes
Horn	Yes

Performance & Speed Control

The Mini XRX+ allows parents to regulate performance through its adjustable throttle limiters.

The stated maximum speed is approximately 13 mph, with the throttle limiters allowing the kart to be restricted to approximately 8–13 mph.

Actual speed can vary depending on rider weight, terrain, surface conditions, vehicle condition, and other operating factors.

Rider Capacity & Seating

The Mini XRX+ is designed for young riders approximately 4–10 years old and features an adjustable seating system for growing children.

• Dual high-back seats


• 5-point safety harness


• Sliding adjustable seat


• Adjustable pedals


• 30–35-inch seat-to-pedal range


• Approximately 300 lb maximum load

The supplied specifications describe seating for two riders. Always follow the manufacturer's specific requirements for passenger use and combined rider weight.

Fuel & Engine

The Mini XRX+ uses a 163cc 4-stroke gasoline engine with a 1.2-gallon fuel capacity.

• 163cc displacement


• 7HP @ 3,600 RPM


• Air-cooled


• 4-stroke


• Electric start


• Pull-start backup


• 1.2-gallon fuel capacity

Use the fuel and engine oil specified by the manufacturer and follow the recommended maintenance schedule.

Safety & Parent Control

The Mini XRX+ incorporates multiple features designed to support supervised youth operation.

• Adjustable throttle limiters


• Remote kill switch


• 5-point safety harness


• Hydraulic rear disc brake


• Dual high-back seats


• LED headlight


• Horn


• Full suspension


• Heavy-duty frame

Parents or responsible adults should supervise young riders and establish an appropriate speed setting and riding area before operation.

Safety & Operating Guidance

• Recommended for children ages 4–10, subject to manufacturer requirements.


• Always wear a properly fitted helmet and appropriate protective riding gear.


• Secure the 5-point harness correctly before every ride.


• Adult supervision is strongly recommended.


• Start at the lowest appropriate speed setting and increase gradually as the rider gains experience.


• Test the remote kill switch before allowing the rider to operate the kart.


• Inspect the brakes, steering, tires, suspension, chain, harness, seats, and frame before each ride.


• Do not exceed the approximately 300 lb maximum load.


• Follow the manufacturer's requirements for two-person seating and combined rider weight.


• Avoid steep terrain, excessive obstacles, or surfaces beyond the kart's capabilities.


• Keep hands, feet, clothing, and loose objects away from moving components.


• Refuel only with the engine switched off and sufficiently cooled, away from ignition sources.


• Operate only in suitable private or designated recreational riding areas.

California / CARB Notice

The TrailMaster Mini XRX+ is NOT CARB-compliant and, according to the supplied specification, is intended for private-property use only in California.

Verify current local requirements and restrictions before purchasing or operating the vehicle.

Maintenance

Routine maintenance is important for safe and reliable operation.

Recommended maintenance includes:

• Check engine oil regularly


• Service the engine according to the manufacturer's schedule


• Inspect and maintain the chain


• Check hydraulic brake operation


• Inspect tires and maintain proper pressure


• Check suspension components


• Lubricate applicable suspension points


• Inspect steering components and fasteners


• Check the battery and starting system


• Inspect seats, harnesses, and frame


• Verify operation of the remote kill switch


• Confirm that throttle limiters are functioning properly

Why Choose the TrailMaster Mini XRX+?

The TrailMaster Mini XRX+ combines youth-friendly adjustability with the performance and features of a gas-powered off-road go-kart. Its 163cc 7HP engine, automatic transmission with reverse, adjustable speed limiting, remote kill switch, full suspension, dual high-back seating, 5-point harness, hydraulic rear disc brake, and heavy-duty frame make it well suited for supervised recreational riding as young drivers build confidence and experience.

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