TrailMaster MK125 125cc Dirt Bike - 4-Speed Manual, Dual Disc Brakes, Electric Start

Description

The TrailMaster MK125 is a mid-size Pro-Series dirt bike built for riders ages 12 and up who are ready to step up their off-road game. Developed in partnership with JHL Offroad, the MK125 is powered by a Zongshen Balanced Shaft 125cc 4-stroke air-cooled engine producing 6.3 horsepower, with both electric start and kick backup for reliable ignition every time. At just 149 lbs and with a 29-inch seat height, it strikes the right balance between lightweight agility and real trail performance.

The Pro-Series pedigree shows in every detail - from the inverted 43/45mm front fork and nitrogen air gas rear mono shock to the stainless steel performance muffler and alloy foldable levers. Front and rear disc brakes deliver confident stopping power on any terrain, while the waterproof wire harness and CDI ignition keep things running smoothly ride after ride. The MK125 is available in red, blue, and green.

Key Features

• Zongshen Balanced Shaft 125cc Engine: Air-cooled, 4-stroke single cylinder delivering 6.3 hp at 7,500 rpm for strong, consistent trail performance.
• Electric Start with Kick Backup: CDI ignition system with both electric and kick start so you're never stranded on the trail.
• 4-Speed Manual Transmission (N-1-2-3-4): True sequential shifting - no circular shift - for full rider control through every gear.
• Dual Disc Brakes (Front & Rear): High-quality disc brakes on both ends provide reliable, confident stopping power across all terrain types.
• Inverted Front Fork (43/45mm): Pro-grade inverted shock absorbers improve handling and absorb trail impacts for a smooth, controlled ride.
• Nitrogen Air Gas Rear Shock: Non-adjustable mono shock with aluminum linkage delivers race-inspired rear suspension performance.
• Low 29" Seat Height: Approachable seat height designed for younger or smaller riders stepping into a full-size dirt bike experience.
• Alloy Wheels, Hubs & Foldable Levers: Lightweight alloy components throughout reduce weight and improve durability on the trail.
• Performance Stainless Steel Muffler: Pro-Series exhaust system designed for optimal airflow and a satisfying throttle response.
• Waterproof Wire Harness: Protects electrical connections from mud, water, and trail debris for long-term reliability.
• 14/12 Wheel Configuration: 60/100-14 front and 80/100-12 rear YUANXING tires sized for mid-size trail and off-road riding.

Shipping

This product requires additional shipping. If you'd like a quote before you purchase, fill out the form on this page or email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.

What's Included

• TrailMaster MK125 125cc Dirt Bike

Why You'll Love It

The MK125 is the kind of dirt bike that earns its reputation one trail at a time. Built to Pro-Series standards, it delivers premium suspension, braking, and engine performance that growing riders can genuinely feel the difference on. The electric start makes it easy to get going, while the 4-speed manual transmission gives developing riders the real gear-shifting experience they're after. Parents and riders alike will appreciate the thoughtfully chosen 29-inch seat height - low enough to build confidence, capable enough to tackle real terrain. With a high-quality steel frame, alloy components throughout, and a waterproof harness that shrugs off the elements, the MK125 is built to ride hard and last long. Whether it's weekend trail rides or daily practice sessions, this is a machine that grows with your rider.

Product Specifications

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