TrailMaster LK140 Pro Series Dirt Bike - Electric Start, 4-Speed Manual, Dual Disc Brakes, 17/14 Wheels

Description

The TrailMaster LK140 Pro Series Dirt Bike is built for riders who are ready to take their off-road experience to the next level. Powered by a Yinxiang 140cc single-cylinder, 4-stroke engine, this mid-size motocross-ready machine delivers a broad, even power band that's equally at home on trails, tracks, and everything in between. Electric start makes getting going effortless, while a backup kick start ensures you're never stranded.

The Pro Series designation means this bike comes loaded with premium components that set it apart from entry-level competition. From the inverted front fork and nitrogen air gas rear shock to alloy rims and hubs, stainless steel exhaust, and full motocross ergonomics, every detail is engineered for performance and durability. At just 172 lbs and with a 32" seat height, the LK140 is a serious off-road machine sized right for teen and adult riders looking to push their limits on the dirt.

Key Features

• 140cc 4-Stroke Engine: Yinxiang single-cylinder, air/oil-cooled engine delivers strong, reliable power with a broad and even power band ideal for trail and motocross riding.
• Electric Start + Kick Start: Dual starting options give you quick, easy ignition with the electric start button or a reliable backup kick start when needed.
• 4-Speed Manual Transmission: Non-circulate 4-gear transmission paired with chain drive for direct, responsive power delivery and full rider control.
• Inverted Front Fork: Premium inverted (upside-down) front shock absorber provides superior rigidity, reduced unsprung weight, and a smoother, more controlled ride over rough terrain.
• Nitrogen Rear Shock: Alloy-linked nitrogen air gas rear shock absorber delivers consistent damping performance and better handling over varied off-road surfaces.
• Dual Disc Brakes: Front and rear disc brakes provide powerful, predictable stopping power in all conditions - essential for aggressive off-road riding.
• Alloy 17/14 Rims and Hubs: Lightweight alloy wheels (17" front, 14" rear) with YUANXING tires tuned for off-road grip and durability.
• Motocross Ergonomics: Full motocross-style geometry with alloy foldable handle levers, high-quality steel frame, and a 32" seat height suited for teen and adult riders.
• CDI Ignition: Electronic CDI ignition ensures smooth, consistent starts and reliable power delivery across all gears.
• Stainless Steel Exhaust: Performance stainless steel muffler resists corrosion and holds up to hard use season after season.

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 LK140 Pro Series Dirt Bike

Why You'll Love It

The LK140 Pro Series is a genuine step up for riders who want real motocross performance without the professional price tag. TrailMaster has built a reputation for producing off-road machines that can handle the demands of regular recreational riding and light track use, and the LK140 lives up to that standard with its race-ready suspension, dual disc brakes, and proven 140cc powerplant. The premium Pro Series components - inverted forks, nitrogen rear shock, alloy everything - give this bike a feel and capability that punches well above its class.

Whether you're a developing rider building skills on the trail or a weekend warrior who just wants a dependable, fun machine to throw around in the dirt, the LK140 delivers. It arrives in your choice of bold color - green, red, blue, or orange - so you can roll in style. With solid construction and thoughtful engineering throughout, this is a dirt bike built to grow with you ride after ride.

Product Specifications

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