TrailMaster LX300-Pro Dirt Bike - 283cc EFI, Liquid-Cooled, 6-Speed Manual
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TrailMaster LX300-Pro Dirt Bike - 283cc EFI, Liquid-Cooled, 6-Speed Manual
Description
The TrailMaster LX300-Pro is a full-size, pro-series dirt bike built for riders who demand race-ready performance without compromise. Developed in partnership with JHL Offroad, this machine is powered by the Zongshen NC300S - a 283cc, 4-stroke, 4-valve, double overhead camshaft engine with EFI and liquid cooling that delivers a strong, even 23hp across the rev range. A 6-speed manual transmission paired with a broad power band gives you precise control on any terrain, from hard-pack tracks to technical trail riding.
From the CNC forged alloy billet wheels and inverted dual-adjustable front forks to the GG-grade dual disc brakes and waterproof wire harness, every component on the LX300-Pro is spec'd for serious riders. At 266 lbs with a 37.4" seat height, it strikes the right balance between agility and stability for adult motocross and off-road use. Whether you're competing or pushing your limits on the weekend, the LX300-Pro is built to keep up.
Key Features
- Zongshen NC300S EFI Engine (283cc / 23hp): Single cylinder, 4-stroke, 4-valve, DOHC with balance shaft and electronic fuel injection for consistent power delivery and easy cold starts.
- Liquid-Cooled with Panasonic Cooling Fan: Water-cooled system with an aluminum alloy water tank cover keeps engine temps in check during extended hard riding.
- 6-Speed Manual Transmission: Full-ratio gearbox with chain drive gives experienced riders complete control over power delivery in any condition.
- Dual Start: Electric + Kick Backup: Electric start for convenience with a kick start backup - so you're never stranded on the trail.
- Inverted Front Shock (54/60-950mm, Dual Adjustable): Premium dual-chamber inverted fork absorbers deliver motocross-grade suspension compliance and precision steering feel.
- Rear Triple-Adjustable Shock Absorber: CNC aluminum alloy linkage rocker arm and rear shock system allow fine-tuned damping for your weight and terrain preference.
- CNC Billet Alloy Wheels - KENDA 21"/18" Tires: GLM 7-series aluminum alloy CNC hub wheels wrapped in KENDA tires for reliable grip and durability on dirt and mixed terrain.
- Dual Disc Brakes (GG Grade): Front and rear disc brakes with a rear rotor guard give you powerful, fade-resistant stopping power in all conditions.
- 30 CrMo High-Strength Steel Frame: Chromoly steel frame offers the rigidity and flex characteristics needed for off-road abuse while keeping overall weight manageable.
- CNC Forged Components Throughout: Upper and lower triple clamps, levers, handlebar, and rocker arm are all CNC machined from aluminum alloy for strength and precision fit.
- Premium Accessories Included: LED headlight with lens, CHOCHO 520HDS high-performance chain, hand grip protectors, hour meter, engine bottom shield, and waterproof wire harness all come standard.
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 LX300-Pro Dirt Bike (283cc EFI)
- LED headlight with lens
- Panasonic cooling fan
- Aluminum alloy water tank cover
- Plastic engine body covers (left and right)
- Engine bottom shield
- Hand grip protectors
- Hour meter
- Rear disc brake rotor guard / protection cover
- CHOCHO 520HDS high-performance chain
- Non-slip gripper seat
Why You'll Love It
The LX300-Pro is the result of TrailMaster's collaboration with JHL Offroad to build a genuinely competitive PRO-Series dirt bike - not a dressed-up entry-level machine. The Zongshen NC300S engine is a proven racing unit, and the EFI system means you get consistent fuel delivery whether you're at altitude, in the cold, or in the heat of competition. The suspension system - with dual-adjustable inverted forks and a triple-adjustable rear shock - is tunable to your riding style, giving you the setup flexibility that serious motocross riders expect. CNC-machined components, a chromoly steel frame, and a comprehensive list of included accessories mean you're getting genuine race-grade hardware from day one. For riders ready to step up to a full-size, full-power platform without paying OEM prices, the LX300-Pro delivers everything you need to ride hard and ride confidently.
Product Specifications
View Product Specs
| Engine Type | Zongshen NC300S, Single cylinder, 4-stroke, 4-valve, water-cooling, DOHC, with balance shaft |
|---|---|
| Displacement | 283cc |
| Max Power | 23hp (±5%) @ 9000 RPM (±5%) |
| Max Torque | 25 N·m (±5%) @ 7000 RPM (±5%) |
| Compression Ratio | 11.6:1 |
| Fuel Supply | EFI (Electronic Fuel Injection) |
| Transmission | 6-Speed Manual, Chain Drive |
| Start Type | Electric Start / Kick Start Backup |
| Lubricant Type | SJ 10W-40 |
| Min. Fuel Consumption | ≤354 g/kw.h |
| Overall Size (L x W x H) | 2190 x 810 x 1290 mm / 86.28 x 31.91 x 50.82 in |
| Wheelbase | 1500 mm / 59.1 in |
| Seat Height | 950 mm / 37.43 in |
| Ground Clearance | 300 mm / 11.82 in |
| Minimum Turning Radius | 2500 mm |
| Fuel Capacity | 7 L / 1.85 Gal |
| Net Weight | 121 kg / 266.2 lbs |
| Gross Weight | 166 kg / 365.2 lbs |
| Packing Size | 2200 x 460 x 1280 mm / 86.68 x 18.12 x 50.43 in |
| Frame | 30 CrMo high-strength chromoly steel |
| Front Suspension | Dual-chamber dual-adjustable inverted shock absorbers (54/60-950mm) |
| Rear Suspension | Triple-adjustable shock absorber with CNC aluminum alloy linkage rocker arm |
| Front Brake | Disc (GG Grade) |
| Rear Brake | Disc (GG Grade) with rotor guard |
| Wheels | GLM 7-series aluminum alloy, CNC hubs |
| Tires | KENDA 21" (front) / 18" (rear) |
| Fork | Aluminum alloy welded fork |
| Upper/Lower Triple Clamps | CNC forged aluminum alloy |
| Handlebar | 7 Series aluminum alloy |
| Chain | DID |
| Exhaust | Stainless steel muffler |
| Sprocket | Alloy |
FAQ
Is the TrailMaster LX300-Pro street legal?
The LX300-Pro is designed as an off-road dirt bike and is not street legal in most states. It does not include the lighting or registration equipment required for on-road use. Always check your local and state regulations before riding on public roads or trails.
Does it come assembled or do I need to put it together?
The LX300-Pro ships partially assembled in a crate. Some final assembly is required, such as attaching the handlebars, front wheel, and mirrors. Most mechanically inclined riders can complete assembly with basic tools. If you're unsure, a local powersports shop can assist with final setup.
What is the difference between the LX300-Pro and the standard LX300?
The LX300-Pro is the PRO-Series version of the LX300 platform, featuring CNC billet alloy wheels, upgraded CNC-machined components throughout (triple clamps, levers, rocker arm), a performance stainless steel muffler, and a more comprehensive set of included accessories like the hour meter, engine bottom shield, and hand grip protectors. It's the more race-ready configuration of the two.
What oil does the LX300-Pro use and how often should I change it?
The LX300-Pro uses SJ 10W-40 motor oil. For a new engine, it's recommended to do a break-in oil change after the first 5-10 hours of riding, then follow regular intervals - typically every 20-25 hours of riding or as specified in the owner's manual. Always use quality 4-stroke motorcycle oil.
How is this bike shipped and how long does delivery take?
The LX300-Pro ships freight on a pallet due to its size and weight (gross weight 365 lbs). Delivery typically involves a freight carrier that will contact you to schedule a curbside drop-off. Lead times vary - contact us at service@omahasportsandgames.com for a current ETA and shipping quote before purchasing.
What age and experience level is the LX300-Pro appropriate for?
The LX300-Pro is a full-size, 283cc adult dirt bike with 23hp and a 37.4" seat height. It is intended for experienced adult riders comfortable with manual transmission and high-performance off-road bikes. It is not recommended for beginners or younger riders. Always wear appropriate safety gear including a full-face helmet, goggles, gloves, and protective riding gear.
| Specification name | Specification Value |
|---|---|
| Fuel supply | Gasoline |
| Transmission type | Manual |
| Vehicle features | Headlights, Navigation system |