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Product details
Kids 125cc Quad: an automatic transmission with reverse gear for easy handling
This Replay GS S7-A Sport Kids 125cc Quad features a fully automatic transmission with reverse gear, eliminating clutch management so the young rider can focus entirely on their trajectory. The final chain drive, robust and easy to maintain, ensures optimal power transfer to the rear wheel. At XtremRS, we know this setup simplifies learning: shifting from forward to reverse is done right from the handlebars, ideal for getting out of tricky situations without having to get off the machine. To extend the lifespan of your chain kit, remember to check its tension and lubrication after every ride—a technical step our experts detail in our complete maintenance guide for 110-125 cc engines.

Kids 125cc Quad: a dual sport exhaust for optimized sound and performance
The steel dual sport exhaust does more than just deliver a rewarding, throbbing sound for this Kids 125cc Quad; it helps efficiently evacuate burned gases from the 4-stroke single-cylinder engine. This configuration frees up the Nitro Motors engine at low and mid RPMs, right where torque is most useful for overcoming off-road obstacles. The neat finish of the headers resists debris and corrosion, guaranteeing longevity for intensive recreational use. Our technicians recommend regular visual checks of the mountings and joint seals—a simple operation that preserves the original performance.
Kids 125cc Quad: a mixed drum and hydraulic disc braking system for enhanced safety
Your young rider's safety relies on a proven hybrid braking system: two front drums for reassuring progressivity, and a single rear hydraulic disc for decisive stopping power. This Kids 125cc Quad thus benefits from intuitive modulation, limiting the risk of steering lock-up on loose terrain. The handlebar lever engages the rear brake with consistent firmness, even after prolonged use. To go further in protection, check out our recommendations for mandatory and recommended motocross rider gear, and discover how to enhance safety for 6-10 year-olds on our dedicated blog.


Kids 125cc Quad: adjustable front and rear suspensions to adapt to your young rider's style
The riding pleasure of this Kids 125cc Quad relies on a well-designed chassis: two pre-load adjustable spring/shock absorber assemblies at the front and an adjustable mono-shock at the rear. This architecture allows you to adjust the stiffness and ride height (180 mm ground clearance) to the rider's weight (up to 82 kg payload) and the type of terrain, from forest trails to bumpier tracks. The geometry offers a 920 mm wheelbase and wide tracks (945/860 mm) for exemplary cornering stability. Precise pre-load adjustment, explained in our technical sheets, transforms the machine's behavior to match your child's style.
Kids 125cc Quad: a reliable and powerful 4-stroke 125 cc engine to kick off the off-road adventure
At the heart of this Kids 125cc Quad beats a 125 cc air-cooled 4-stroke single-cylinder engine developing 4.7 kW, coupled with an electric starter powered by a maintenance-free 12V 5Ah gel battery. This block prioritizes low-end torque and flexibility, ideal for learning, with a top speed capped at 45 km/h. The 2.5 L fuel tank ensures comfortable range for extended sessions. Not street-legal, this quad is simple to maintain: oil change, air filter, spark plug. Our master guide for 110-125 cc maintenance guides you step-by-step to preserve the mechanical health of this Nitro Motors engine renowned for its robustness.


Kids 125cc Quad: a progressive and restrictable thumb throttle for learning with complete confidence
The rider interface of this Kids 125cc Quad was designed for total parental control: the thumb throttle features a stepless restrictor screw to limit the lever travel and therefore the power delivered, step by step. The handlebar starter makes cold starts easy, while the lanyard safety kill switch instantly stops the engine in the event of a fall. The remote-controlled alarm even allows you to start or cut the ignition remotely—a reassuring exclusive feature. Combined with standard handguards and the LED brake light, this package puts active safety front and center, as we recommend in our essentials for protecting your child on a mini-moto or mini-quad.
Warning
The user must wear appropriate protective equipment and be under adult supervision.
The purchase of a Dirt bike, Pit bike, or Quad type vehicle by a minor over 14 years old is made under the responsibility of an adult. Only one user is allowed on the vehicle.
Purchases on the XtremRS website must be made by an adult.
Warning: Dirt bike / Pit bike / Quad / Pocket quad type vehicles are motorized machines and not toys.
It is recommended to carry out assembly and maintenance by a professional. We recommend users check the condition of the vehicle before and after each use.
General
- Brand Nitro Motors
- Reference 11224110505
Features
- Engine Thermique 4 Temps
- Front Wheel Size 7"
- Rear Wheel Size 7"
- Engine displacement 125cc
- Power 6.8 CV
- Brake Type Frein à Disque + Freins à Tambours
- Cooling Liquide
- Clutch Automatique
- Transmission Chaine
- Front tires 16x8-7
- Rear tire 16x8-7
- Net Weight 98
- Seat height 670
- Wheelbase 920
- Starter Type Electrique