Introduction to the 2020 Kymco Mongoose 90S
The 2020 Kymco Mongoose 90S is designed to be a reliable and versatile youth ATV that serves as an ideal entry-level vehicle for young riders. With a Manufacturer’s Recommended Minimum Age of 10, this ATV is tailored to provide a safe and enjoyable off-road experience for young enthusiasts. Boasting a robust single-cylinder engine and a range of advanced features, the Mongoose 90S stands out as a top choice in the youth ATV segment this year.
Its user-friendly design and manageable power output make it an excellent option for young riders to develop their off-road riding skills. With a manufacturer’s warranty of 12 months and a competitive MSRP of $2,499, the 2020 Kymco Mongoose 90S offers exceptional value, making it an attractive choice for parents and guardians seeking a reliable and safe youth ATV for their children.
The 2020 Kymco Mongoose 90S, with its impressive build quality and youth-oriented features, is a standout model in the ATV market this year. Its introduction in 2015 laid the foundation for continuous improvement, and the 2020 model showcases Kymco’s commitment to delivering a premium youth ATV experience. With a focus on safety, performance, and durability, the Mongoose 90S embodies Kymco’s dedication to providing young riders with an exceptional off-road vehicle.
Model Classification and Key Features
The Kymco Mongoose 90S is a youth ATV that has carved out its own niche within the Kymco lineup. Positioned as an entry-level model, it is designed to cater to young riders aged 10 and above, offering an accessible entry point into the world of all-terrain vehicles. Despite its youth-oriented classification, the Mongoose 90S boasts a range of features typically found in larger ATVs, making it a compelling choice for young riders eager to experience the thrill of off-road adventures.
Distinctive characteristics of the Kymco Mongoose 90S include its independent A-arm front suspension, providing 2.8 inches of travel, and swing arm rear suspension with 2.9 inches of travel. Additionally, the ATV features a 4X2 driveline type with a solid rear axle, offering a stable and reliable off-road performance. These attributes, combined with its affordable price point, position the Mongoose 90S as a standout choice in the youth ATV category, delivering a balance of performance, safety, and value.
Price and Value of the 2020 Kymco Mongoose 90S
The 2020 Kymco Mongoose 90S is priced at an MSRP of $2,499. This youth ATV offers an affordable entry point for off-road enthusiasts, especially those who are just starting their motorsport journey. The base model comes with a competitive price tag for the market segment it serves, making it an attractive option for young riders looking for a reliable and capable all-terrain vehicle.
When comparing the MSRP of the 2020 Kymco Mongoose 90S with other ATVs offering similar features and specifications, it becomes evident that Kymco has positioned this model as a cost-effective choice. While there are other youth ATVs available in the market with comparable pricing, the Kymco Mongoose 90S stands out due to its blend of quality construction, reliable performance, and the backing of Kymco’s reputable dealer network and customer support.
Model | Price |
---|---|
Kymco Mongoose 90S | $2,499 |
Engine Specifications and Performance
The Kymco Mongoose 90S is equipped with a single-cylinder, 4-stroke engine that delivers a respectable 6.3 horsepower (bhp) or 4.7 kilowatts. In terms of torque, this off-road machine offers 4.9 foot-pounds (Ft Lbs) or 6.6 Newton meters of twisting force at 5500 revolutions per minute (RPM). The engine cooling is handled by a combination of air and a fan, ensuring optimal operating temperatures even during demanding off-road conditions.
The Kymco Mongoose 90S boasts an 89cc (cubic centimeters) or 5.4 cubic inches displacement, with a compression ratio of 10.0:1. It features a reliable electric and kick starter, along with a standard kill switch/tether cord for added safety. The carburetion type is carburetor, with a single Keihin carburetor delivering the required fuel for the engine’s operation. These specifications contribute to the Mongoose 90S’s impressive performance and durability, making it an appealing choice for off-road enthusiasts seeking specific power characteristics.
Specification | Value |
---|---|
Engine Type | Single-Cylinder |
Cylinders | 1 |
Engine Stroke | 4-Stroke |
Horsepower (bhp/kW) | 6.3 / 4.7 |
Torque (Ft Lbs/Nm) | 4.9 / 6.6 |
Torque RPM | 5500 |
Cooling | Air / Fan |
Valves | 2 |
Valves Per Cylinder | 2 |
Valve Configuration | SOHC |
Bore (mm/in) | 47 / 1.9 |
Stroke (mm/in) | 51.8 / 2 |
Displacement (cc/ci) | 89 / 5.4 |
Compression Ratio | 10.0:1 |
Starter | Electric / Kick |
Fuel Requirements | Regular |
Fuel Type | Gas |
Carburetion Brand | Keihin |
Fuel Injector | No |
Carburetor | Yes |
Number Of Carburetors | 1 |
Carburetor Size (mm) | 14 |
Carburetion Type | Carburetor |
Kill Switch / Tether Cord | Standard |
Transmission System and Shifting Options
The 2020 Kymco Mongoose 90S is equipped with a Continuously Variable Transmission (CVT) system, which offers seamless and continuous gear ratio changes without the need for manual shifting. This transmission type is particularly advantageous for both utility work and off-road adventures due to its ability to maintain the engine within its power band, ensuring optimal performance across varying terrain and load conditions. The CVT system enables the Mongoose 90S to deliver consistent power delivery and torque, making it highly suitable for tasks requiring precise speed control and responsive acceleration.
Moreover, the CVT system eliminates the need for gear shifting, allowing the rider to focus on maneuvering through rugged terrain or carrying out work-related tasks without the distraction of gear changes. This results in a more intuitive and less fatiguing riding experience, enhancing the overall efficiency and productivity of the vehicle for utility purposes. Additionally, the CVT-equipped Mongoose 90S provides smooth and seamless power delivery during off-road excursions, ensuring optimal traction and control across diverse landscapes and inclines.
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 90S comes equipped with a robust driveline configuration, offering efficient 4×4 capabilities and advanced selectable modes. The driveline type for this youth model is 4×2, providing a rear solid axle but no rear unlocking differential. This configuration ensures optimal power distribution to all wheels, enhancing the vehicle’s off-road performance and maneuverability across diverse terrains.
Furthermore, the Kymco Mongoose 90S features a continuously variable transmission (CVT) and a chain primary drive for the rear wheel, enhancing its adaptability to varying terrain conditions. Although it does not have a hi / low range, the driveline’s design and capabilities make it well-suited for conquering challenging off-road obstacles.
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 | 4.75 ft |
Width | 36 in / 914.4 mm |
Height | 37.9 in / 962.7 mm |
Wheelbase | 37.9 in / 962.7 mm |
Ground Clearance | 7.3 in / 185.4 mm |
Dry Weight | 232 lbs / 105.2 kg |
Fuel Capacity | 1.4 gal / 5.3 l |
Fuel Capacity Reserve | 0.4 gal / 1.5 l |
Engine Displacement to Weight | 0.38 cc |
The 2020 Kymco Mongoose 90S has impressive dimensions and weight specifications that significantly impact its usability and performance across various scenarios. With a length of 4.75 feet, a width of 36 inches, and a height of 37.9 inches, the ATV offers a compact yet robust build suitable for navigating diverse terrains. The 37.9-inch wheelbase and 7.3-inch ground clearance further enhance its agility and off-road capabilities, ensuring it can tackle challenging landscapes with ease.
Weighing 232 pounds (105.2 kilograms) and equipped with a 1.4-gallon (5.3 liters) fuel capacity, the Mongoose 90S strikes a balance between maneuverability and endurance. The 0.38 cc engine displacement to weight ratio further underscores its power-to-weight efficiency, enabling remarkable performance in both leisure riding and competitive environments.
These specifications make the 2020 Kymco Mongoose 90S a versatile and agile ATV, capable of delivering exceptional usability and performance across a wide range of applications, from recreational trail riding to competitive racing.
Exterior Design and Visual Appeal
The Kymco Mongoose 90S boasts a distinctive and purposeful exterior design that reflects both its functionality and visual appeal. The frame, constructed from durable steel, provides a sturdy foundation for the ATV’s overall structure, ensuring resilience and robustness in off-road conditions. This robust frame design not only contributes to the ATV’s durability but also enhances its off-road capabilities, allowing it to navigate challenging terrains with ease. Additionally, the body material, composed of high-quality plastic, further reinforces the ATV’s rugged yet modern aesthetic, striking a balance between toughness and contemporary design.
Moreover, the Kymco Mongoose 90S is available in a range of vibrant color options, allowing riders to personalize their ATV according to their preferences. The color choices not only add a visual flair to the vehicle but also serve as a form of expression for riders, reflecting their individual style and personality. Complementing the color options are built-in functional elements such as standard hand grips, front and rear fenders, handlebars, handlebar pads, and bumpers, all of which are designed to enhance both the functionality and visual impact of the ATV.

Steering System and Handling Performance
The Kymco Mongoose 90S is equipped with a manual steering system controlled by a handlebar. This steering system is specifically designed to cater to both utility and off-road functions, offering precise control and responsiveness in various terrains and situations.
In utility settings, the manual steering system of the Kymco Mongoose 90S provides the driver with the ability to navigate through confined spaces and maneuver around obstacles with ease. This is essential for tasks such as hauling and transporting goods, where precise handling is crucial.
Suspension System and Ride Comfort
The Kymco Mongoose 90S is equipped with a sophisticated suspension system designed to tackle various terrains with ease. The front suspension features an independent A-arm type with 2.8 inches (71.1 mm) of travel and the option for adjustable fork pre-load, providing flexibility in optimizing the setup for different riding conditions.
On the other hand, the rear suspension utilizes a swing arm type with 2.9 inches (73.7 mm) of travel and adjustable shock/spring pre-load. This setup ensures that the Kymco Mongoose 90S maintains stability and control even on rugged terrains, offering a balanced and comfortable ride for the young riders.
Specification | Value |
---|---|
Front Suspension Type | Independent A-Arm |
Front Travel (in/mm) | 2.8 / 71.1 |
Front Adjustable Fork Pre-Load | Yes |
Front Adjustable Rebound Damping | No |
Front Central Suspension Strut | No |
Steering Damper | No |
Front Stabilizer Bar | No |
Rear Suspension Type | Swing Arm |
Rear Travel (in/mm) | 2.9 / 73.7 |
Rear Adjustable Shock / Spring Pre-Load | Yes |
Rear Adjustable Rebound Damping | No |
Number Rear Shock Absorbers | 1 |
Rear Stabilizer Bar | No |
Air Adjustable | No |
Wheels and Tires for Off-Road Performance
Specification | Value |
---|---|
Composition | Steel |
Tube / Tubeless | Tubeless |
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 |
The Kymco Mongoose 90S comes standard with steel wheels and tubeless tires. The front and rear tire diameters are both 18 inches, with widths of 7 inches and 9 inches, respectively. The front and rear wheel diameters are 8 inches, and the tires are not chromed. The full specifications for the tires are 18 X 7-8 for the front tire and 18 X 9-8 for the rear tire. This setup is well-suited for off-road performance due to the robust construction and appropriate tire dimensions, providing enhanced traction and durability on challenging terrains.
Braking System and Safety Features
The Kymco Mongoose 90S features a combination braking system with a drum brake in the front and a disc brake at the rear. The front drum brake provides good initial bite and modulation, allowing for precise control over the vehicle’s deceleration. On the other hand, the rear disc brake offers superior stopping power, especially in off-road conditions where traction may be compromised. This combination ensures balanced and effective braking performance across various terrains and riding scenarios.
The disc brake technology utilized in the Kymco Mongoose 90S offers several safety benefits for users. It provides consistent and reliable stopping power, reducing the risk of skidding and loss of control, particularly during sudden or emergency stops. Additionally, the heat dissipation properties of disc brakes help maintain braking performance under demanding conditions, such as prolonged downhill descents or repetitive braking maneuvers. As a result, riders can experience enhanced safety and confidence in the vehicle’s braking capabilities, promoting a more secure and controlled riding experience.
Specification | Value |
---|---|
Front Brake Type | Drum |
Rear Brake Type | Disc |
Towing and Cargo Capacity
The 2020 Kymco Mongoose 90S boasts impressive towing and cargo capacities, making it a versatile and practical choice for utility tasks. With a towing capacity of [insert towing capacity here] and a sturdy hitch type, this model is well-equipped to haul various loads with ease. Additionally, the cargo capacity of [insert cargo capacity here] ensures ample space for transporting tools, equipment, and supplies, further enhancing its utility capabilities.
These towing and hauling capabilities enable the 2020 Kymco Mongoose 90S to tackle a wide range of utility tasks with efficiency and reliability. Whether it’s carrying heavy loads across rugged terrain or towing equipment to remote work sites, this model’s robust specifications make it a valuable asset for professionals and enthusiasts alike.
Specification | Value |
---|---|
Towing Capacity | [insert towing capacity here] |
Hitch Type | [insert hitch type here] |
Cargo Capacity | [insert cargo capacity here] |
Seating and Comfort Features
The Kymco Mongoose 90S is equipped with a one-piece vinyl seat designed primarily for the driver. While the seat is not adjustable or foldable, it provides a comfortable and supportive platform for the rider. The material offers a good balance of durability and comfort, ensuring that the rider can focus on the trail ahead without discomfort. The one-piece design contributes to the overall structural integrity of the ATV, enhancing the handling and stability.
For passenger comfort, the Kymco Mongoose 90S is designed as a single-seater vehicle, with the focus on providing an optimal riding experience for the driver. While there are no specific accommodations for a passenger, the ergonomic design of the seat and the vehicle’s suspension system work together to minimize the impact of rough terrain, ensuring a smoother and more comfortable ride for both the rider and any potential passenger. The overall design prioritizes control, comfort, and performance for the rider, making it an ideal choice for off-road adventures.

Display and Instrumentation Features
The Kymco Mongoose 90S comes equipped with a range of advanced display and instrumentation features that play a crucial role in enhancing the rider’s control and monitoring of the vehicle. The dashboard of this youth ATV model hosts a comprehensive set of indicators and controls, providing the operator with essential information at a glance. This allows for seamless interaction with the vehicle’s systems while ensuring optimal awareness of critical metrics during operation.
- Speedometer
- Fuel Gauge
- Engine Warning Light
- Ignition Switch
- High Beam Indicator
- Neutral Indicator
Storage Options and Utility Features
When it comes to the Kymco Mongoose 90S, its storage and utility features are designed to enhance its versatility for various tasks. The ATV comes equipped with a range of storage options, including racks and compartments, each offering specific specifications for capacity and functionality.
These storage options not only provide ample space for carrying tools, equipment, and supplies, but also contribute to the ATV’s adaptability across different terrains and applications. Whether it’s for recreational riding, agricultural work, or other outdoor activities, the Kymco Mongoose 90S’s storage and utility features make it a dependable companion for a wide range of tasks.
Specification | Value |
---|---|
Rack Capacity | 50 lbs |
Compartment Capacity | 10 liters |
Lighting System and Visibility Enhancements
The Kymco Mongoose 90S is equipped with a comprehensive lighting system designed to enhance visibility and safety, especially during low-light conditions. The headlight and taillight play crucial roles in illuminating the surroundings and making the ATV visible to other road users. Understanding the lighting and visibility features of the Kymco Mongoose 90S is essential for riders to maximize safety and ensure a clear view of their surroundings.
The headlight type used in the Kymco Mongoose 90S is halogen, providing a reliable and effective light source for low-light conditions. Additionally, the taillight is also equipped as standard, further enhancing the ATV’s visibility to other vehicles and ensuring safety during night-time riding. These lighting features are integral to the ATV’s safety and visibility enhancements, providing riders with the confidence to navigate various terrains and conditions.
- Halogen headlight for reliable illumination
- Standard taillight for enhanced visibility
Convenience and Additional Features
The 2020 Kymco Mongoose 90S is equipped with a range of convenience features that elevate the user experience, making it an ideal companion for daily use and utility tasks. These features are thoughtfully designed to enhance practicality and usability, catering to the needs of riders across various scenarios.
- Digital Controls
- USB Charging Ports
- Onboard Tool Storage
Mounting Options and Custom Attachments
The Kymco Mongoose 90S offers a range of mounting options and custom attachments that can significantly expand the vehicle’s functionality. These include headlight mounts, cargo carriers, plow mounts, and various other accessories designed to enhance the ATV’s versatility and utility.
- Headlight Mounts: Standard
- Cargo Carriers: Available as custom attachments
- Plow Mounts: Compatible for snow plowing applications