{"product_id":"trailmaster-mk125s-pro-series-dirt-bike-4-speed-semi-automatic-electric-start-dual-disc-brakes-14-12-wheels","title":"TrailMaster MK125S Pro Series Dirt Bike, 4-Speed Semi-Automatic, Electric Start, Dual Disc Brakes, (14\/12) Wheels","description":"\u003cp data-end=\"432\" data-start=\"83\"\u003e      The \u003cem\u003e\u003cstrong\u003eTrailMaster MK125S Pro Series\u003c\/strong\u003e\u003c\/em\u003e is a premium mid-size dirt bike built for riders who want upgraded suspension, stronger components, and smooth power delivery without the complexity of a full manual clutch. Powered by a reliable 125cc air-cooled 4-stroke engine, it delivers consistent performance, solid torque, and dependable off-road capability.\u003c\/p\u003e\n\u003cp data-end=\"851\" data-start=\"434\"\u003e        \u003cstrong\u003eThis model features a 4-speed semi-automatic transmission, meaning riders can shift through gears without using a manual clutch perfect for learning control while still getting a more advanced riding experience.\u003c\/strong\u003e With electric start plus kick-start backup, inverted front suspension, nitrogen rear shock, and 14-inch front \/ 12-inch rear wheels, the MK125S is built for improved handling, comfort, and trail stability.\u003c\/p\u003e\n\u003cp data-end=\"1051\" data-start=\"853\"\u003eDesigned for riders ages 12 and up, it’s a strong step-up bike for teens and adults who want a higher-performance trail machine with modern Pro-Series upgrades. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-end=\"1056\" data-start=\"1053\"\u003e\n\u003ch3 data-end=\"1076\" data-start=\"1058\" data-section-id=\"1yl5694\"\u003ePerformance Specs:\u003c\/h3\u003e\n\u003ch4 data-end=\"1089\" data-start=\"1078\"\u003eEngine\u003c\/h4\u003e\n\u003cul data-end=\"1494\" data-start=\"1090\"\u003e\n\u003cli data-end=\"1177\" data-start=\"1090\" data-section-id=\"qfhn2h\"\u003e125cc Single-Cylinder, 4-Stroke, Air-Cooled Engine (Zongshen balanced shaft platform)\u003c\/li\u003e\n\u003cli data-end=\"1198\" data-start=\"1178\" data-section-id=\"1wudhfz\"\u003e123cc Displacement\u003c\/li\u003e\n\u003cli data-end=\"1264\" data-start=\"1199\" data-section-id=\"kb7z3o\"\u003e4-Speed Semi-Automatic Transmission (no manual clutch required)\u003c\/li\u003e\n\u003cli data-end=\"1290\" data-start=\"1265\" data-section-id=\"1ublqc5\"\u003eAutomatic Clutch System\u003c\/li\u003e\n\u003cli data-end=\"1330\" data-start=\"1291\" data-section-id=\"1bo9snh\"\u003eElectric Start with Kick Start Backup\u003c\/li\u003e\n\u003cli data-end=\"1352\" data-start=\"1331\" data-section-id=\"iecr1y\"\u003eCDI Ignition System\u003c\/li\u003e\n\u003cli data-end=\"1373\" data-start=\"1353\" data-section-id=\"qbfq5o\"\u003eChain Drive System\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1374\" data-section-id=\"ghh6a0\"\u003eMaximum Power: ~6.3 HP\u003c\/li\u003e\n\u003cli data-end=\"1435\" data-start=\"1399\" data-section-id=\"1v8nfrb\"\u003eMaximum Torque: 8.8 N·m @ 5500 RPM\u003c\/li\u003e\n\u003cli data-end=\"1462\" data-start=\"1436\" data-section-id=\"1twlswh\"\u003eCompression Ratio: 9.0:1\u003c\/li\u003e\n\u003cli data-end=\"1494\" data-start=\"1463\" data-section-id=\"1d6lnio\"\u003eFuel Consumption: ≤367 g\/kW·h\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"1512\" data-start=\"1496\"\u003eFuel System\u003c\/h4\u003e\n\u003cul data-end=\"1624\" data-start=\"1513\"\u003e\n\u003cli data-end=\"1542\" data-start=\"1513\" data-section-id=\"ptxsnx\"\u003eFuel Capacity: 0.92 Gallons\u003c\/li\u003e\n\u003cli data-end=\"1567\" data-start=\"1543\" data-section-id=\"1frw176\"\u003eCarbureted Fuel System\u003c\/li\u003e\n\u003cli data-end=\"1598\" data-start=\"1568\" data-section-id=\"1as3ad0\"\u003eEPA-compliant 4-stroke setup\u003c\/li\u003e\n\u003cli data-end=\"1624\" data-start=\"1599\" data-section-id=\"in6rf6\"\u003eRecommended Oil: 10W-40\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"1641\" data-start=\"1626\"\u003eSuspension\u003c\/h4\u003e\n\u003cul data-end=\"1812\" data-start=\"1642\"\u003e\n\u003cli data-end=\"1694\" data-start=\"1642\" data-section-id=\"nedhnj\"\u003eFront: Inverted hydraulic forks (race-style setup)\u003c\/li\u003e\n\u003cli data-end=\"1726\" data-start=\"1695\" data-section-id=\"1dzpc1q\"\u003eRear: Nitrogen gas mono shock\u003c\/li\u003e\n\u003cli data-end=\"1752\" data-start=\"1727\" data-section-id=\"1d1ge6c\"\u003eAluminum linkage system\u003c\/li\u003e\n\u003cli data-end=\"1812\" data-start=\"1753\" data-section-id=\"11vybyr\"\u003eDesigned for improved impact absorption and trail control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"1833\" data-start=\"1814\"\u003eBraking System\u003c\/h4\u003e\n\u003cul data-end=\"1943\" data-start=\"1834\"\u003e\n\u003cli data-end=\"1862\" data-start=\"1834\" data-section-id=\"1xln2u6\"\u003eFront Hydraulic Disc Brake\u003c\/li\u003e\n\u003cli data-end=\"1890\" data-start=\"1863\" data-section-id=\"oo7oxn\"\u003eRear Hydraulic Disc Brake\u003c\/li\u003e\n\u003cli data-end=\"1943\" data-start=\"1891\" data-section-id=\"bmnguh\"\u003eDual disc braking system for strong stopping power\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"1964\" data-start=\"1945\"\u003eWheels \u0026amp; Tires\u003c\/h4\u003e\n\u003cul data-end=\"2181\" data-start=\"1965\"\u003e\n\u003cli data-end=\"2009\" data-start=\"1965\" data-section-id=\"1gpe4zu\"\u003eFront Tire: 60\/100-14 knobby off-road tire\u003c\/li\u003e\n\u003cli data-end=\"2053\" data-start=\"2010\" data-section-id=\"qtcmlj\"\u003eRear Tire: 80\/100-12 knobby off-road tire\u003c\/li\u003e\n\u003cli data-end=\"2102\" data-start=\"2054\" data-section-id=\"ninnab\"\u003e14-inch front wheel \/ 12-inch rear wheel setup\u003c\/li\u003e\n\u003cli data-end=\"2133\" data-start=\"2103\" data-section-id=\"avszrb\"\u003eAlloy wheels with hub system\u003c\/li\u003e\n\u003cli data-end=\"2181\" data-start=\"2134\" data-section-id=\"1ryvko3\"\u003eOff-road tread designed for grip and traction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"2198\" data-start=\"2183\"\u003eDimensions\u003c\/h4\u003e\n\u003cul data-end=\"2363\" data-start=\"2199\"\u003e\n\u003cli data-end=\"2230\" data-start=\"2199\" data-section-id=\"rvifyx\"\u003eOverall Size: 63 x 27 x 42 in\u003c\/li\u003e\n\u003cli data-end=\"2249\" data-start=\"2231\" data-section-id=\"qbah5d\"\u003eWheelbase: 31 in\u003c\/li\u003e\n\u003cli data-end=\"2276\" data-start=\"2250\" data-section-id=\"1vnpnhb\"\u003eSeat Height: 29–29.5 in\u003c\/li\u003e\n\u003cli data-end=\"2305\" data-start=\"2277\" data-section-id=\"sgiu3n\"\u003eGround Clearance: 10.2 in\u003c\/li\u003e\n\u003cli data-end=\"2363\" data-start=\"2306\" data-section-id=\"dfhff4\"\u003eCompact mid-size frame geometry for control and agility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"2390\" data-start=\"2365\"\u003eFrame \u0026amp; Construction\u003c\/h4\u003e\n\u003cul data-end=\"2526\" data-start=\"2391\"\u003e\n\u003cli data-end=\"2415\" data-start=\"2391\" data-section-id=\"9abh07\"\u003eReinforced steel frame\u003c\/li\u003e\n\u003cli data-end=\"2445\" data-start=\"2416\" data-section-id=\"1dli0vx\"\u003eAluminum linkage components\u003c\/li\u003e\n\u003cli data-end=\"2469\" data-start=\"2446\" data-section-id=\"1puc5tb\"\u003eFoldable alloy levers\u003c\/li\u003e\n\u003cli data-end=\"2498\" data-start=\"2470\" data-section-id=\"os7xn7\"\u003ePerformance exhaust system\u003c\/li\u003e\n\u003cli data-end=\"2526\" data-start=\"2499\" data-section-id=\"6spi91\"\u003eWaterproof wiring harness\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"2539\" data-start=\"2528\"\u003eWeight\u003c\/h4\u003e\n\u003cul data-end=\"2587\" data-start=\"2540\"\u003e\n\u003cli data-end=\"2562\" data-start=\"2540\" data-section-id=\"o6e7g2\"\u003eNet Weight: 149lbs\u003c\/li\u003e\n\u003cli data-end=\"2587\" data-start=\"2563\" data-section-id=\"1lf0wu3\"\u003eGross Weight: 213lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"2613\" data-start=\"2589\"\u003eAdditional Features\u003c\/h4\u003e\n\u003cul data-end=\"2971\" data-start=\"2614\"\u003e\n\u003cli data-end=\"2650\" data-start=\"2614\" data-section-id=\"lp4738\"\u003eElectric start + kick start backup\u003c\/li\u003e\n\u003cli data-end=\"2700\" data-start=\"2651\" data-section-id=\"1fsg3k7\"\u003e4-speed semi-automatic transmission (no clutch)\u003c\/li\u003e\n\u003cli data-end=\"2750\" data-start=\"2701\" data-section-id=\"1aotqdh\"\u003eInverted front suspension for improved handling\u003c\/li\u003e\n\u003cli data-end=\"2798\" data-start=\"2751\" data-section-id=\"ntfkq3\"\u003eNitrogen rear shock for smoother ride quality\u003c\/li\u003e\n\u003cli data-end=\"2836\" data-start=\"2799\" data-section-id=\"1c6oil8\"\u003eLightweight mid-size chassis design\u003c\/li\u003e\n\u003cli data-end=\"2900\" data-start=\"2837\" data-section-id=\"1stlee\"\u003eBuilt for trail riding, off-road use, and recreational riding\u003c\/li\u003e\n\u003cli data-end=\"2936\" data-start=\"2901\" data-section-id=\"q4zxvv\"\u003eAvailable in Red, Blue, and Green\u003c\/li\u003e\n\u003cli data-end=\"2971\" data-start=\"2937\" data-section-id=\"128xqgo\"\u003eRecommended Rider Age: 12+ Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"2993\" data-start=\"2973\"\u003eWhat's Included\u003c\/h4\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"3153\" data-start=\"2994\"\u003e✔ TrailMaster MK125S Pro Series Dirt Bike\u003cbr data-end=\"3038\" data-start=\"3035\"\u003e✔ Electric Start Battery\u003cbr data-end=\"3065\" data-start=\"3062\"\u003e✔ Kick Start System\u003cbr data-end=\"3087\" data-start=\"3084\"\u003e✔ Tool Kit\u003cbr data-end=\"3100\" data-start=\"3097\"\u003e✔ Owner’s Manual\u003cbr data-end=\"3119\" data-start=\"3116\"\u003e✔ Assembly Hardware \u0026amp; Instructions\u003c\/p\u003e","brand":"Moneta Speed Co","offers":[{"title":"Red","offer_id":47895512121497,"sku":null,"price":1399.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":47895512154265,"sku":null,"price":1399.0,"currency_code":"USD","in_stock":true},{"title":"Green","offer_id":47895512187033,"sku":null,"price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/2302\/4537\/files\/F778363C-41A8-4D3F-BA38-522E2C99C8D9.webp?v=1781033933","url":"https:\/\/www.monetaspeedco.com\/products\/trailmaster-mk125s-pro-series-dirt-bike-4-speed-semi-automatic-electric-start-dual-disc-brakes-14-12-wheels","provider":"Moneta Speed Co","version":"1.0","type":"link"}