{"product_id":"trailmaster-lk140-pro-series-dirt-bike-electric-start-4-speed-manual-dual-disc-brakes-17-14-wheels","title":"TrailMaster LK140 Pro Series Dirt Bike - Electric Start, 4-Speed Manual, Dual Disc Brakes, 17\/14 Wheels","description":"\u003ch1\u003eTrailMaster LK140 Pro Series Dirt Bike - Electric Start, 4-Speed Manual, Dual Disc Brakes, 17\/14 Wheels\u003c\/h1\u003e\n\u003chr\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e140cc 4-Stroke Engine:\u003c\/strong\u003e Yinxiang single-cylinder, air\/oil-cooled engine delivers strong, reliable power with a broad and even power band ideal for trail and motocross riding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Start + Kick Start:\u003c\/strong\u003e Dual starting options give you quick, easy ignition with the electric start button or a reliable backup kick start when needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Speed Manual Transmission:\u003c\/strong\u003e Non-circulate 4-gear transmission paired with chain drive for direct, responsive power delivery and full rider control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInverted Front Fork:\u003c\/strong\u003e Premium inverted (upside-down) front shock absorber provides superior rigidity, reduced unsprung weight, and a smoother, more controlled ride over rough terrain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrogen Rear Shock:\u003c\/strong\u003e Alloy-linked nitrogen air gas rear shock absorber delivers consistent damping performance and better handling over varied off-road surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Disc Brakes:\u003c\/strong\u003e Front and rear disc brakes provide powerful, predictable stopping power in all conditions - essential for aggressive off-road riding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy 17\/14 Rims and Hubs:\u003c\/strong\u003e Lightweight alloy wheels (17\" front, 14\" rear) with YUANXING tires tuned for off-road grip and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotocross Ergonomics:\u003c\/strong\u003e Full motocross-style geometry with alloy foldable handle levers, high-quality steel frame, and a 32\" seat height suited for teen and adult riders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCDI Ignition:\u003c\/strong\u003e Electronic CDI ignition ensures smooth, consistent starts and reliable power delivery across all gears.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless Steel Exhaust:\u003c\/strong\u003e Performance stainless steel muffler resists corrosion and holds up to hard use season after season.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTrailMaster LK140 Pro Series Dirt Bike\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eWhether 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.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eView Product Specs\u003c\/strong\u003e\u003c\/summary\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Type\u003c\/th\u003e\n\u003ctd\u003eYinxiang 140cc, Single cylinder, 4-stroke, air\/oil-cooled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003ctd\u003e140cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Power\u003c\/th\u003e\n\u003ctd\u003e6.8 kW \/ 7500 RPM (±1.5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Torque\u003c\/th\u003e\n\u003ctd\u003e9.7 N·m \/ 5500 RPM (±1.5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompression Ratio\u003c\/th\u003e\n\u003ctd\u003e8.8:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShift Type\u003c\/th\u003e\n\u003ctd\u003e4-speed, non-circulate gear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStart Type\u003c\/th\u003e\n\u003ctd\u003eElectric \/ Kick Start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIgnition\u003c\/th\u003e\n\u003ctd\u003eCDI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTransmission\u003c\/th\u003e\n\u003ctd\u003eChain Drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMin. Fuel Consumption\u003c\/th\u003e\n\u003ctd\u003e367 g\/kW·h or less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubricant\u003c\/th\u003e\n\u003ctd\u003eSF15W\/40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Turning Radius\u003c\/th\u003e\n\u003ctd\u003e1900 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Size (L x W x H)\u003c\/th\u003e\n\u003ctd\u003e1780 x 740 x 1100 mm \/ 69.42 x 28.86 x 42.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWheelbase\u003c\/th\u003e\n\u003ctd\u003e1210 mm \/ 47.67 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeat Height\u003c\/th\u003e\n\u003ctd\u003e835 mm \/ 32.89 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGround Clearance\u003c\/th\u003e\n\u003ctd\u003e340 mm \/ 13.26 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFuel Capacity\u003c\/th\u003e\n\u003ctd\u003e6 L \/ 1.56 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWheels\u003c\/th\u003e\n\u003ctd\u003eAlloy 17\/14 Rims, Alloy Hubs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTires\u003c\/th\u003e\n\u003ctd\u003eYUANXING FT: 70\/100-17 \/ RR: 90\/100-14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrame\u003c\/th\u003e\n\u003ctd\u003eHigh quality steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront Fork\u003c\/th\u003e\n\u003ctd\u003eInverted, non-adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRear Shock\u003c\/th\u003e\n\u003ctd\u003eAlloy U\u0026amp;D connector, non-adjustable, nitrogen gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHandlebars\u003c\/th\u003e\n\u003ctd\u003eAlloy and foldable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront Brake\u003c\/th\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRear Brake\u003c\/th\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExhaust\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Weight\u003c\/th\u003e\n\u003ctd\u003e78 kg \/ 171.6 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGross Weight\u003c\/th\u003e\n\u003ctd\u003e103 kg \/ 226.6 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePacking Size\u003c\/th\u003e\n\u003ctd\u003e1370 x 440 x 660 mm \/ 53.43 x 17.16 x 25.74 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Colors\u003c\/th\u003e\n\u003ctd\u003eGreen, Red, Blue, Orange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat age and skill level is the LK140 Pro Series best suited for?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe LK140 is best suited for teen and adult riders with at least some prior dirt bike or off-road riding experience. The 32\" seat height and 140cc engine make it a mid-size bike - larger than beginner youth models but not as large as a full-size adult motocross bike. It's ideal for intermediate riders who are ready to step up in power and capability.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the LK140 come assembled, or is assembly required?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe bike ships partially assembled in a crate. Final assembly is required, including attaching handlebars, mirrors (if applicable), and other components. Most buyers with basic mechanical ability can complete assembly at home. A qualified powersports technician or mechanic can also assist if needed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is the LK140 shipped, and how long does delivery take?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe LK140 Pro Series ships via freight carrier on a pallet due to its size and weight. Delivery times vary by location. Please contact us at service@omahasportsandgames.com before purchasing if you need a delivery estimate or have specific shipping questions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat type of fuel does the LK140 require?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe LK140's 140cc 4-stroke engine runs on regular unleaded gasoline. The fuel tank holds 6 liters (approximately 1.56 gallons). Always use fresh fuel and follow the manufacturer's recommendations in your owner's manual for best performance and longevity.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the electric start and kick start on this bike?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe electric start allows you to fire up the engine with the push of a button - quick, convenient, and easy for riders of all experience levels. The kick start serves as a reliable backup if the battery is low or the electric start is unavailable. Having both gives you maximum confidence that you can always get your bike running out on the trail.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the LK140 street legal?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eNo, the TrailMaster LK140 Pro Series is an off-road dirt bike and is not street legal. It is designed for use on private property, off-road trails, and closed motocross courses. Always check local laws and regulations regarding off-road vehicle use in your area.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"TrailMaster Powersports","offers":[{"title":"Green","offer_id":55951838085425,"sku":"TrailMaster LK140 Pro Series Dirt Bike","price":1599.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":55951838118193,"sku":"TrailMaster LK140 Pro Series Dirt Bike","price":1599.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":55951838150961,"sku":"TrailMaster LK140 Pro Series Dirt Bike","price":1599.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":55951838183729,"sku":"TrailMaster LK140 Pro Series Dirt Bike","price":1599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/LK140_015.jpg?v=1787763169","url":"https:\/\/omahasportsandgames.com\/products\/trailmaster-lk140-pro-series-dirt-bike-electric-start-4-speed-manual-dual-disc-brakes-17-14-wheels","provider":"Omaha Sports \u0026 Games","version":"1.0","type":"link"}