Pit Bike 90cc youth YX 12/10 KAYO TS90
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Product details
YX 90cc 4-Stroke Engine: The High-Performance Heart of Your Teen 90cc PitBike
This teen 90cc PitBike is powered by an air-cooled YX 4-stroke engine, delivering 5.4 hp (4.1 kW) for generous torque from low RPMs. This thermal architecture ensures exemplary reliability and ideal progressivity for young riders aged 6 to 12, without the difficult-to-manage nervousness of a 2-stroke. The 3.5L tank offers comfortable autonomy for long riding sessions on tracks or trails, limiting refueling stops. To preserve the longevity of this robust mechanics, we recommend following regular maintenance guidelines (oil change, air filter, spark plug) detailed in our expert guide for 110cc motocross maintenance, as the principles are identical for this displacement.

Controlled Exhaust and Sound on this Teen 90cc PitBike
The original exhaust is calibrated to comply with current noise standards on private land and approved circuits, while unleashing the power of the 90cc 4-stroke. The deep and muted sound, typical of 4-stroke engines, allows for peaceful practice without nuisance to the neighborhood, a major asset for learning in tranquility. The careful finish of the exhaust line resists splashes and heat, a guarantee of durability for intensive off-road use. Remember to periodically check the tightness of the fasteners and the condition of the manifold gasket to maintain performance and sealing.
High-Performance Hydraulic Braking for the Safety of Your Teen 90cc PitBike
Safety is paramount: this teen 90cc PitBike is equipped with hydraulic disc brakes at the front and rear, offering powerful bite and precise dosing, even for small hands. This system ensures sharp and secure stops on all types of terrain, muddy or dry, with reduced maintenance (annual bleeding, pad check). Combined with a ground clearance of 180 mm and a seat height of 625 mm, the rider maintains total control. To complement this effective braking, rider equipment remains essential: helmets, gloves, boots, and back protectors are detailed in our complete guide on mandatory and recommended motocross rider equipment.


Kick and Electric Start: Simplicity for Your Teen 90cc PitBike
The dual start system (kick and electric) is a major asset for the child's autonomy. The 12V electric starter allows for an instant restart after a fall or stall, without physical effort, while the backup kickstart guarantees a certain restart in case of a low battery. This technical redundancy, rare in this segment, demonstrates the "zero-hassle" design of the KAYO brand. We advise maintaining the battery with a smart charger during winter periods to preserve its lifespan and ensure an always-operational electric start.
4-Speed Semi-Automatic Gearbox: Ideal Progression on this Teen 90cc PitBike
The chain drive powers a 4-speed semi-automatic clutch gearbox (without a clutch lever on the handlebar). This system eliminates the complexity of clutch management for the young rider, who focuses solely on the foot shifter: smooth gear changes, no stalling by mistake, and easier learning of engine RPM. It is the perfect technical bridge before a future manual clutch machine. The robustness of the primary/secondary/chain assembly is designed to withstand youthful errors; regular chain lubrication and tension checks (according to the manual's recommendations) are sufficient to ensure its longevity.

Warning
The user must wear suitable 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 carried out under the responsibility of an adult. Only one user should ride the vehicle.
Purchases on the XtremRS site 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 have assembly and maintenance performed by a professional. We recommend users check the condition of the vehicle before and after each use.
General
- Brand Kayo
- Reference EIM-714083
Features
- Engine Thermique 4 Temps
- Front Wheel Size 12"
- Rear Wheel Size 10"
- Engine displacement 90cc
- Power 5.4 CV
- Brake Type Freins à Disques Hydraulique
- Cooling Par Air
- Clutch Semi-Automatique
- Transmission Chaine
- Net Weight 60
- Seat height 625
- Wheelbase 1025
- Starter Type Electrique
- Battery Type Plomb