Introduction to the 2018 Kymco Mongoose 90 S
The 2018 Kymco Mongoose 90 S is a purpose-built youth ATV designed to introduce young riders to the thrill of off-road adventures. With a target user age of 10 and above, this ATV is specifically engineered to provide a safe and enjoyable riding experience for young enthusiasts. The Mongoose 90 S comes with a range of notable highlights and updates for the 2018 model year, making it a standout choice for young riders seeking their first ATV experience.
Equipped with a range of safety features and a youth-friendly design, the 2018 Kymco Mongoose 90 S offers young riders the opportunity to develop their off-road skills in a controlled and secure environment. The ATV’s intuitive controls and manageable power delivery make it an ideal platform for learning the fundamentals of ATV riding, while its sturdy construction and reliable performance ensure a durable and long-lasting ownership experience.
Highlighted by its reliable performance and user-friendly design, the 2018 Kymco Mongoose 90 S stands out as a top choice for young ATV enthusiasts this year. Whether it’s exploring the trails or learning the ropes of off-road riding, this youth ATV delivers a compelling combination of fun, safety, and dependability, making it a standout option for young riders looking to embark on thrilling outdoor adventures.
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The Kymco Mongoose 90 S, introduced in 2015, is a youth ATV designed for riders aged 10 and above. As a part of Kymco’s lineup, this model holds a unique position as an entry-level vehicle, offering a perfect balance of safety, performance, and fun. Despite its youth classification, the Mongoose 90 S boasts a range of features typically found in larger ATVs, making it a standout option for young riders to develop their off-road skills.
One of the key differentiators of the Kymco Mongoose 90 S is its 89cc single-cylinder engine, delivering 6.3 horsepower. This ATV also features a reliable electric/kick starter, making it easy for young riders to start and operate. Additionally, the Mongoose 90 S is equipped with independent A-arm front suspension and a swing arm rear suspension, ensuring a smooth and controlled ride over various terrains. These distinctive characteristics set the Mongoose 90 S apart from other youth ATVs in the market.
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Price and Value of the 2018 Kymco Mongoose 90 S
The 2018 Kymco Mongoose 90 S comes with a Manufacturer’s Suggested Retail Price (MSRP) of $2,499. This youth ATV is targeted at riders aged 10 and above, offering a blend of fun and performance. The competitive pricing of the Mongoose 90 S makes it an attractive option for those seeking a reliable and affordable ATV for young riders.
When comparing the MSRP of the 2018 Kymco Mongoose 90 S with other ATVs in its class, it becomes evident that Kymco has positioned this model as a compelling choice. The combination of features, build quality, and the Kymco brand’s reputation makes the Mongoose 90 S an excellent value proposition in the youth ATV segment.
Model | Price |
---|---|
2018 Kymco Mongoose 90 S | $2,499 |
Engine Specifications and Performance
The Kymco Mongoose 90 S is equipped with a single-cylinder, 4-stroke engine that generates 6.3 horsepower (bhp) or 4.7 kilowatts (kW). This engine type, along with its 2 valves per cylinder and SOHC valve configuration, provides a responsive power delivery that is well-suited for off-road use. The 89cc displacement and electric/kick starter further enhance its performance capabilities, allowing riders to navigate challenging terrains with ease.
Furthermore, the air/fan cooling system and Keihin carburetion brand ensure optimal engine temperature regulation and fuel delivery, contributing to the engine’s durability and reliability in rugged off-road conditions. The inclusion of a standard kill switch/tether cord adds a layer of safety, appealing to users seeking specific power characteristics combined with enhanced control.
Specification | Value |
---|---|
Engine Type | Single-Cylinder |
Engine Stroke | 4-Stroke |
Horsepower (bhp/kW) | 6.3 / 4.7 |
Valves Per Cylinder | 2 |
Valve Configuration | SOHC |
Displacement (cc/ci) | 89 / 5.4 |
Starter | Electric / Kick |
Cooling | Air / Fan |
Carburetion Brand | Keihin |
Kill Switch / Tether Cord | Standard |
Transmission System and Shifting Options
The 2018 Kymco Mongoose 90 S is equipped with a Continuously Variable Transmission (CVT), offering seamless and continuous gear ratio changes without the need for manual shifting. This type of transmission is particularly beneficial for both youth work and off-road adventures due to its user-friendly operation and smooth power delivery. The CVT allows young riders to focus on mastering their riding skills without the distraction of gear shifting, while also providing consistent power to conquer diverse off-road terrains.
Moreover, the CVT eliminates the need for clutch operation, making it easier for young riders to handle the Kymco Mongoose 90 S with confidence. For off-road enthusiasts, the CVT ensures that the ATV maintains optimal power and torque delivery, enabling seamless acceleration and climbing capabilities across varying terrain types, from trails to dunes.
Specification | Value |
---|---|
Transmission Type | Continuously Variable (CVT) |
Primary Drive (Rear Wheel) | Chain |
Primary Drive (Engine / Transmission) | Belt |
Reverse | Yes |
Hi / Low Range | No |
Driveline Configuration and 4×4 Capabilities
The Kymco Mongoose 90 S is equipped with a 4×2 driveline configuration, providing power to the rear wheels. While it does not feature a 4×4 drivetrain, the rear solid axle delivers robust performance in various off-road conditions. The driveline system offers a single driveline mode, without a rear unlocking differential, ensuring consistent power delivery to both rear wheels.
The absence of a 4×4 system means that the Kymco Mongoose 90 S is optimized for lighter off-road use. The solid rear axle enhances stability and traction, making it well-suited for navigating challenging terrains such as dirt trails and light mud. This configuration prioritizes simplicity and reliability, contributing to the ATV’s durability and ease of maintenance.
Specification | Value |
---|---|
Driveline Type | 4X2 |
Number Of Driveline Modes | 1 |
Rear Unlocking Differential | No |
Rear Solid Axle | Yes |
Dimensions and Technical Specifications
Specification | Value |
---|---|
Length (ft) | 4.75 |
Width (in/mm) | 36 / 914.4 |
Height (in/mm) | 37 / 939.8 |
Wheelbase (in/mm) | 37.9 / 962.7 |
Ground Clearance (in/mm) | 7.3 / 185.4 |
Dry Weight (lbs/kg) | 232 / 105.2 |
Fuel Capacity (gal/l) | 1.4 / 5.3 |
Engine Displacement to Weight (cc) | 0.38 |
When it comes to the 2018 Kymco Mongoose 90 S, its dimensions and technical specifications play a crucial role in defining its usability and performance across various scenarios. The ATV’s length of 4.75 feet, width of 36 inches, height of 37 inches, and wheelbase of 37.9 inches contribute to its maneuverability and stability, making it suitable for tight trails and rough terrains. Additionally, the ground clearance of 7.3 inches enables the ATV to navigate over obstacles with ease, while the dry weight of 232 lbs and fuel capacity of 1.4 gallons impact its agility and range, respectively.
Exterior Design and Visual Appeal
The Kymco Mongoose 90 S boasts a distinctive exterior design that seamlessly marries functionality with visual appeal. The frame, constructed from steel, provides robust support and durability, essential for withstanding the demands of off-road terrain. Complementing this sturdy frame is the plastic body material, which not only contributes to the ATV’s sleek and modern aesthetic but also ensures a lightweight build for agile maneuverability. The strategically positioned floor board, standard hand grips, front and rear fenders, and bumpers are all integrated to enhance both the functionality and visual allure of the Kymco Mongoose 90 S.
Available in a range of color options, the Kymco Mongoose 90 S allows riders to express their individual style preferences. This personalization extends to the built-in functional elements, such as the standard handlebars and handlebar pads, and the front bash plate, which not only serve practical purposes but also contribute to the overall visual impression of the ATV. The attention to detail in the exterior design of the Kymco Mongoose 90 S underscores its commitment to providing a compelling blend of functionality and visual appeal.

Steering System and Handling Performance
The Kymco Mongoose 90 S is equipped with a manual steering system that utilizes a handlebar for control. This type of steering system is particularly well-suited for youth and off-road settings due to its simplicity and direct feedback. In youth settings, the manual steering system provides a manageable level of control, allowing young riders to develop their handling skills and confidence. When venturing off-road, the handlebar control offers precise maneuverability, enabling riders to navigate through challenging terrains with ease.
Furthermore, the manual steering system enhances the overall responsiveness of the Kymco Mongoose 90 S, contributing to its dynamic handling characteristics. Whether traversing youth-oriented trails or tackling rugged off-road paths, the steering system ensures that riders can easily adapt to varying conditions, making the vehicle well-suited for diverse environments. The combination of the handlebar control and the vehicle’s suspension setup results in a cohesive handling package that prioritizes precision and agility, enhancing the riding experience for young enthusiasts and off-road adventurers alike.
Suspension System and Ride Comfort
The Kymco Mongoose 90 S is equipped with a sophisticated suspension system designed to tackle a variety of terrains with ease and precision. Let’s delve into the details of the front and rear suspension setups, including their types and specifications, to understand how these components contribute to enhancing both comfort and handling.
The front suspension of the Kymco Mongoose 90 S features an Independent A-Arm setup. With a front travel of 2.8 inches (71.1 mm) and non-adjustable fork pre-load and rebound damping, this configuration is tailored to provide a balanced blend of responsiveness and stability, ensuring a comfortable and controlled ride over rugged terrains.
Specification | Value |
---|---|
Front Suspension Type | Independent A-Arm |
Front Travel (in/mm) | 2.8 / 71.1 |
Front Adjustable Fork Pre-Load | No |
Front Adjustable Rebound Damping | No |
Front Central Suspension Strut | No |
Steering Damper | No |
Front Stabilizer Bar | No |
Wheels and Tires for Off-Road Performance
Specification | Value |
---|---|
Wheels Composition | Steel |
Tube / Tubeless | Tubed |
Front Tire Diameter (in) | 18 |
Rear Tire Diameter (in) | 18 |
Chromed | No |
Front Tire Width | 7 |
Front Wheel Diameter | 8 |
Rear Tire Width | 9 |
Rear Wheel Diameter | 8 |
Front Tire (Full Spec) | 18 X 7-8 |
Rear Tire (Full Spec) | 18 X 9-8 |
When it comes to off-road performance, the Kymco Mongoose 90 S comes equipped with robust steel wheels and tubed tires. The front and rear tire diameters of 18 inches, along with the tire widths and wheel diameters, provide the necessary stability and traction required for navigating challenging off-road terrains. The tire setup of 18 X 7-8 for the front tire and 18 X 9-8 for the rear tire ensures a balanced combination of grip and maneuverability, essential for off-road riding.
Braking System and Safety Features
The Kymco Mongoose 90 S is equipped with a front drum brake and a rear disc brake, offering a balanced braking system suitable for youthful riders. The front drum brake provides reliable stopping power, while the rear disc brake enhances control and responsiveness. This combination of braking components ensures effective braking performance across various terrains and riding conditions.
The rear disc brake on the Kymco Mongoose 90 S contributes to improved safety and control during use. Its design allows for efficient heat dissipation, reducing the risk of brake fade during prolonged use. This feature provides riders with consistent and reliable braking performance, promoting safe and confident maneuvering in diverse riding scenarios.
Specification | Value |
---|---|
Front Brake Type | Drum |
Rear Brake Type | Disc |
Towing and Cargo Capacity
Specification | Value |
---|---|
Towing Capacity | X lbs |
Hitch Type | |
Cargo Capacity | X cubic inches |
Seating and Comfort Features
When it comes to the Kymco Mongoose 90 S, the seating and comfort features are designed to provide a comfortable riding experience for the driver. The one-piece vinyl seat offers a supportive and cushioned surface, ensuring that the rider can maintain a comfortable position throughout the journey. The seat is not adjustable, but its ergonomic design and material contribute to minimizing fatigue and discomfort, even during extended rides. Moreover, the non-folding feature provides added stability and durability, enhancing the overall comfort and safety for the rider.
Additionally, the seat is located in a position that optimizes the rider’s balance and control over the vehicle, further enhancing the overall comfort and riding experience. While the Kymco Mongoose 90 S is designed as a single-seater, the seat’s thoughtful construction and material selection ensure that the rider can enjoy a comfortable and supportive seating position, regardless of the terrain or duration of the ride.

Dashboard and Instrumentation
The Kymco Mongoose 90 S is equipped with a comprehensive dashboard and instrumentation system designed to provide the operator with essential information and controls for optimal vehicle management. The display and instrumentation features play a crucial role in enhancing the rider’s control and monitoring of the vehicle, ensuring a seamless riding experience.
- Speedometer: Provides real-time information on the vehicle’s speed, allowing the rider to maintain safe and efficient riding practices.
- Fuel Gauge: Monitors the fuel level, enabling the operator to plan refueling stops and prevent unexpected fuel depletion during rides.
- Engine Warning Light: Alerts the rider to any potential issues with the vehicle’s engine, promoting proactive maintenance and troubleshooting.
- Ignition Switch: Enables the rider to start and stop the engine conveniently, enhancing overall vehicle control.
Storage Options and Utility Features
The Kymco Mongoose 90 S is equipped with various storage and utility features designed to enhance its versatility for a wide range of tasks. The ATV comes with front and rear racks, providing ample space for carrying gear, supplies, and equipment. The front rack has a capacity of 22 lbs, while the rear rack can handle up to 44 lbs, offering substantial storage capabilities for different needs.
Additionally, the Kymco Mongoose 90 S features front and rear compartments, further expanding its storage options. The front compartment offers 3.8 liters of storage space, while the rear compartment provides 5.3 liters, allowing users to securely store essential items during their outdoor adventures. These storage solutions make the ATV well-suited for various tasks, from recreational outings to light-duty work requirements.
Specification | Value |
---|---|
Front Rack Capacity | 22 lbs |
Rear Rack Capacity | 44 lbs |
Front Compartment Capacity | 3.8 liters |
Rear Compartment Capacity | 5.3 liters |
Lighting System and Visibility Enhancements
The Kymco Mongoose 90 S is equipped with a comprehensive lighting system designed to optimize visibility and safety, especially during low-light conditions. The headlight and taillight play pivotal roles in enhancing the rider’s ability to see and be seen, contributing to overall safety on the road.
- Standard Halogen Headlight
- Enhanced Visibility for Low-Light Conditions
- Energy-Efficient Lighting System
Convenience and Additional Features
The Kymco Mongoose 90 S is equipped with a range of convenience features designed to enhance the user experience for daily use and youth tasks. These features cater to the needs of young riders and provide practical solutions for various scenarios, making the Mongoose 90 S a versatile and user-friendly choice.
- Digital controls for easy operation
- USB charging ports for electronic devices
- Onboard tool storage for quick access
Mounting Options and Custom Attachments
The Kymco Mongoose 90 S is a versatile all-terrain vehicle designed for young riders, and its functionality can be further extended through a variety of mounting options and custom attachments. From headlight mounts to cargo carriers, there are several accessories available for this model that can significantly enhance its utility and adaptability to different tasks and terrains.
One of the standard features of the Kymco Mongoose 90 S is the headlight mounts, allowing for easy installation of additional lighting components for improved visibility during night rides. Furthermore, the availability of halogen headlights as a standard feature provides a solid foundation for incorporating supplementary lighting accessories to suit specific riding conditions and preferences.
- Plow mounts for snow clearing and landscaping tasks
- Cargo carriers for transporting gear and equipment
- Winches for added pulling power and recovery capability