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NRG50 14/12" motocross for kids 50cc
Product details
The NRG50 14/12": The Perfect 50cc Kids' Motocross Bike for Absolute Freedom
Give your child an authentic and secure motocross experience with the NRG50 14/12", a 50cc kids' motocross bike designed to combine performance, robustness, and pure pleasure. Ideal for young riders aged 6 to 10, this mini dirt bike features a powerful 2-stroke engine (9 HP) and an ultra-resistant structure, designed to withstand shocks and intense sessions. With a top speed of 50 km/h (adjustable for beginners) and an aggressive design, it turns every outing into an adventure. At XtremRS, we have selected this model for its perfect balance between safety and thrills, validated by our mechanics and motocross instructors. Perfect for circuits or private terrain, it prepares your child to master the basics of riding with confidence. Discover our guide to choosing the ideal motocross bike according to your child's age.
A 50cc 2-Stroke Engine: Mastered Power and Unbeatable Reliability
The heart of this kids' motocross bike beats to the rhythm of a 2-stroke air-cooled engine, designed to offer reactive acceleration without overheating, even during the most intense sessions. With 9 horsepower under the hood, this block propels the NRG50 to 50 km/h (speed adjustable via the kill switch for novices), while remaining easy to control thanks to its automatic clutch. No risk of stalling: the kickstarter (foot start) guarantees instant ignition, even after a fall. For optimal durability, we recommend a fuel/oil mixture of 1:20 (see our complete maintenance guide). XtremRS Tip: after 5 hours of use, check the spark plug and oil level to preserve performance. This engine is approved for amateur competitions – a bonus for ambitious young riders!
A Steel Frame and High-Performance Shock Absorbers for Unwavering Stability
The NRG50 14/12" stands out with its steel frame treated by powder coating, an industrial process that reinforces its resistance to corrosion and shocks. The telescopic front forks (30 mm diameter) and rear mono-shock absorber absorb vibrations and jumps with surgical precision, offering optimal comfort even on rough terrain. The ergonomic seat (61 cm height) and solid aluminum handlebars (66 cm width) ensure a natural riding position, reducing fatigue. With a featherweight of 39.8 kg, this kids' motocross bike is maneuverable at will, while supporting up to 60 kg of load. Tested in Real Conditions on XtremRS partner circuits (such as La Roche-en-Brenil), this frame has proven its extreme reliability.
A Racing Exhaust for a Powerful Sound and Optimized Performance
The NRG50's special competition exhaust is not just a matter of style: its optimized design improves gas evacuation, slightly boosting power in the high range while producing a deep and motivating sound (without being deafening). Made of stainless steel, it resists rust and high temperatures, even after hours of intensive use. Unlike low-end models, this exhaust is fixed with reinforced collars to prevent parasitic vibrations. XtremRS Safety Tip: regularly check the fixings and clean the silencer with a damp cloth to prevent carbon buildup. For noise-conscious parents, note that this system remains compliant with family circuit standards (list available here).
A Protected Chain: Safety and Longevity Guaranteed
The high-resistance chain transmission (with steel-tempered sprockets) is fully protected by a reinforced plastic casing, eliminating the risk of injury or snagging with branches. This sealed system also prevents dust and mud from infiltrating, reducing premature wear. Unlike low-end motocross bikes, the NRG50 uses an industrial-quality chain (identical to those on 110cc models), greased at the factory for extended lifespan. Recommended Maintenance: lubricate the chain after each outing with specific 2-stroke grease (available in our accessory shop). “A well-maintained chain lasts 3 times longer”, reminds our chief mechanic.
A Reinforced Swingarm for Impeccable Road Holding
The NRG50's rear swingarm has been redesigned for 2024 with a thickened tubular steel structure, offering increased rigidity without adding weight. This key component, often neglected on entry-level models, is crucial for stability in turns and shock absorption. Sealed bearings (dust-proof) guarantee smooth rotation over thousands of kilometers. Combined with the adjustable rear shock absorber, this swingarm allows adjusting the seat height and firmness according to your child's weight and riding style. Field Test: on the bumps of the Venarey-les-Laumes circuit, the NRG50 demonstrated road holding worthy of a 110cc!
Disk Brakes for Precise and Secure Stopping
Safety is at the heart of the NRG50 14/12", with a disk braking system (180 mm front, 160 mm rear) far more effective than the drum brakes of low-end motocross bikes. Hydraulic calipers offer perfect progressivity, avoiding brutal lockups that could unbalance a young rider. Semi-metallic pads resist overheating, even after repeated braking downhill. Safety Bonus: 2.50x10" tires (with deep treads) ensure maximum grip on dirt or grass. “80% of falls among children are related to poorly mastered braking”, explains our instructor. Hence the importance of adjusting the lever pressure (tools provided) to adapt sensitivity to small hands. Consult our safety guide for more information.
An Emergency Kill Switch and Progressive Throttle for Optimal Parental Control
The NRG50 integrates two essential devices for concerned parents:
1️ The magnetic kill switch (fixed to the handlebars) allows instant engine shutdown in case of danger, even from a distance.
2️ The adjustable throttle grip limits maximum power (ideal for beginners). These features, often absent on low-end motocross bikes, make the NRG50 a responsible choice for introducing your child to motocross in serenity. Our Advice: start with 50% power the first few days, then gradually increase. To go further, discover our protection equipment recommendations (helmet, gloves, protections).
Why Choose the NRG50 14/12" from XtremRS?
At XtremRS, we don't just sell a kids' motocross bike: we offer a turnkey experience, with:
A reactive after-sales service (spare parts available within 48 hours, detailed maintenance guides).
A 12-month manufacturer's warranty (extendable to 24 months with our premium package).
A network of partner circuits for riding in complete legality (list here).
Compatible accessories (racing exhaust, graphic kit, additional protections).
Personalized support from our experts (size selection, adjustments, riding advice).The NRG50 14/12" is not just a bike: it's a passport to adventure, designed to grow with your child. “90% of our customers return for a 110cc after 2 years”, testifies our sales manager. Proof that this 50cc motocross bike perfectly prepares for the next step!
- Minimum height: ~1.20 m (to touch the ground with their feet, seat at 61 cm from the ground).
- Maximum weight: 60 kg (recommended payload).
- Seat-pedal distance: 37 cm (for optimal comfort).
We advise trying it in a store or checking that the child can put their feet flat on the ground for more stability.
- Private or partner motocross circuits.
- Closed grounds (with authorization).
For legal use on public roads, a homologated bike would be required (with license plate, insurance, etc.), which is not the case here.
- Oil change and fuel/oil mixture: use a 1:20 mixture (1 liter of oil for 20 liters of SP95/98 fuel). Drain the engine after 10-15 hours of use.
- Chain lubrication: clean and grease after each outing (specific chain spray).
- Brake check: inspect disk and pad wear (front/rear disk brakes).
- Tires: adapted pressure (2.50x10) and tread check.
- Air filter: regularly clean (especially after dusty outings).
Wear parts (chain, tires, brake pads) are not covered by the 2-year warranty.
- Assembled: engine, frame, fork, wheels, handlebars.
- To be assembled: handlebar fixing, brake adjustment, protection mounting (if provided).
Required tools: Allen wrenches (4/5/6 mm), socket wrench, cross screwdriver.
Allow 30-45 minutes for final assembly. An illustrated manual is included. For non-handy people, we offer in-store assembly service (on request).
- In-store pickup: possible without charge in our warehouse in Herne (Germany) or at our partner resellers in France (list available on request).
- Delivery time: 5 to 8 working days (delivery by appointment for vehicles).
The bike is delivered on a pallet (carton dimensions: 1155x380x605 mm).
- Damage related to falls or abusive use (jumps, collisions).
- Wear parts (chain, tires, brake pads, clutch).
- Safety equipment (helmet, gloves).
For extended coverage, we offer a warranty extension (please contact us). Keep your invoice and maintenance logbook for any claims.
1. Carburetor adjustment: reduce fuel intake to limit brutal accelerations (to be done by a professional).
2. Restriction kit: some accessories (e.g., rev limiter) can be installed (contact us for compatibility).
3. Tire pressure: inflate slightly more to reduce grip (and therefore speed).
Be careful: any modification cancels the warranty if it causes damage.
- Homologated cross helmet (ECE 22.05 standard) with visor.
- Reinforced gloves (palm and finger protection).
- Back protector or protective vest (with dorsal shells).
- Knee and elbow pads.
- Cross boots (protected ankle).
- Reinforced pants and jacket (or suit).
Our safety equipment is not covered by the 2-year warranty (normal wear).
- Checking the federation's regulations (e.g., FFM in France): some races require homologated bikes or specific modifications.
- Adapting the bike: treaded tires, suspension adjustment, frame protection.
- Providing reinforced maintenance (oil change before each race, brake check).
For intensive use, we recommend our "Pro Race" range (please contact us).
- Fuel (1L/20km): ~€50/year (SP98 + 2-stroke oil).
- Basic maintenance (oil change, chain lubrication): ~€80/year.
- Wear parts (tires, brake pads): ~€100-150/year (depending on intensity).
- Insurance (if used in a club): ~€150-200/year (civil liability).
Total estimated budget: €380-500/year. To reduce costs, we offer maintenance kits (oil + filter + chain) at a preferential price.
- Customer feedback: consult our verified reviews (4.7/5) and test videos on our site.
- Rental: some partners offer rentals for a day (please contact us for the list).
Our return policy: 14 days for unused products (except assembled vehicles).
| Criterion | NITRO NRG50 (50cc) | Electric bike (e.g., 1000W) ||--|--|--|| Autonomy | ~50 km (1L fuel) | 30-45 min (battery) || Power | 9 HP (constant) | 1-1.5 HP (progressive) || Maintenance | Oil change, lubrication | None (except brakes/tires) || Noise | High (90-95 dB) | Silent || Energy cost | ~€5/100km | ~€1/100km || Weight | 40 kg | 25-30 kg || Price | ~€1,200-1,500 | ~€800-1,200 || Choice according to use: thermal for sensations and endurance, electric for silence and simplicity.
Warning
The user must wear adapted protective equipment and be under adult supervision.
The purchase of a vehicle such as a Dirt bike, Pit bike, Quad made by a minor over 14 years old is done under the responsibility of an adult. Only one user must ride the vehicle.
The purchase on the riderproshop site must be made by an adult.
Warning: Vehicles such as Dirt bikes / Pit bikes / Quads / Pocket quads are motorized vehicles and not toys.
It is recommended to perform the assembly and maintenance at a professional. We recommend users to check the vehicle's condition before/after each use.
General
- Brand Nitro Motors
- Reference 11104530808
Features
- Engine Thermique 2 Temps
- Front Wheel Size 14"
- Rear Wheel Size 12"
- Engine displacement 50cc
- Power 8.9 CV
- Brake Type Freins à Disques
- Cooling Par Air
- Clutch Automatique
- Transmission Chaine
- Front tires 2,50-10
- Rear tire 2,50-10
- Net Weight 40
- Seat height 610
- Wheelbase 940
- Starter Type Kick