TrailMaster LK125 Pro Series Dirt Bike, Electric Start, 4-Speed Manual, Dual Disc Brakes, (17/14) Wheels

      The TrailMaster LK125 Pro Series is a mid-size dirt bike built for riders who want a strong balance of performance, control, and durability. Powered by a reliable 125cc air-cooled 4-stroke engine, this model delivers smooth power delivery and dependable off-road performance for trail riding and recreational use.

        It features a 4-speed manual transmission with a hand-operated clutch, giving riders full control over gear selection while building real dirt bike skills. With electric start plus kick-start backup, inverted front suspension, nitrogen rear shock, and a reinforced steel frame, the LK125 Pro Series is designed for improved handling, stability, and comfort on rough terrain. Its larger 17-inch front and 14-inch rear wheels provide better obstacle clearance and a more stable ride for riders ages 12 and up.

Specifications

Engine

• 125cc Single-Cylinder, 4-Stroke, Air-Cooled Engine (Zongshen-based platform)
• 123.67cc Displacement
• 4-Speed Manual Transmission (1-down, 3-up shift pattern)
• Manual Clutch System
• Electric Start with Kick Start Backup
• CDI Ignition System
• Chain Drive System
• Maximum Power: 6.3 HP @ 7500 RPM
• Maximum Torque: 8.8 N·m @ 5500 RPM
• Compression Ratio: 9.0:1
• Fuel Consumption: ≤367 g/kW·h

Fuel System

• Fuel Capacity: 1.56 Gallons (6L)
• Carbureted Fuel System
• Recommended Oil: 15W/40

Suspension

• Front: Inverted hydraulic fork (non-adjustable)
• Rear: Alloy U&D connector rear shock with aluminum linkage
• Designed for improved stability and trail absorption

Braking System

• Front Hydraulic Disc Brake
• Rear Hydraulic Disc Brake
• Dual disc braking system for strong stopping power

Wheels & Tires

• Front Tire: 70/100-17 knobby off-road tire
• Rear Tire: 90/100-14 knobby off-road tire
• 17-inch front wheel / 14-inch rear wheel
• Alloy rims with alloy hubs
• Off-road tread for maximum traction

Dimensions

• Overall Length: 69.4 in.
• Overall Width: 28.9 in.
• Overall Height: 42.9 in.
• Wheelbase: 47.7 in.
• Seat Height: 32.9 in.
• Ground Clearance: 13.4 in.

Frame & Construction

• Heavy-duty steel frame
• Alloy triple clamps
• Foldable alloy handle levers
• Stainless steel exhaust system
• Reinforced motocross-style chassis

Weight

• Net Weight: 171 lbs
• Gross Weight: 226 lbs

Additional Features

• Electric start system
• Kick start backup
• 4-speed manual clutch transmission
• Inverted front fork suspension for improved handling
• Nitrogen rear shock for smoother ride quality
• Full motocross ergonomics design
• Built for trail, off-road, and recreational riding
• Available in Red, Blue, Green, and Orange
• Recommended Rider Age: 12+ Years

What's Included

✔ TrailMaster LK125 Dirt Bike
✔ Electric Start Battery
✔ Kick Start System
✔ Tool Kit
✔ Owner’s Manual
✔ Assembly Hardware & Instructions