Specs
- New or used
- Used
- Availability
- In stock
- Colour
- Orange
- Available colours
- Black OrangeManufacturer spec
- Horsepower
- 6.3 hpManufacturer spec
- Torque
- 4.8 lb-ftManufacturer specDealer: 4.8 ft. lb. @ 5,500 rpm
- Displacement
- 89 ccManufacturer spec
- Engine cycle
- Four-strokeManufacturer specDealer: SOHC, 4-stroke
- Cooling
- Air-cooledManufacturer specDealer: Fan
- Transmission
- CVTManufacturer spec
- Wheelbase
- 37.9 inManufacturer spec
- Dry weight
- 232 lbManufacturer spec
- Fuel capacity
- 1.4 galManufacturer spec
- Seating
- 1Manufacturer spec
- Model code
- MONGOOSE90S
- Warranty
- One year limited factoryManufacturer spec
- VIN
- RFBLE07S3JB250279
- Stock #
- KY250279
All details from the dealer (16)
- Model Type
- Mongoose
Features
- Features
- Preload Adjustable ShocksManufacturer spec
- Features
- The Mongoose 90S Has Reverse GearManufacturer spec
- Features
- Large Rear Disc BrakeManufacturer spec
- Features
- Lanyard Safety SwitchManufacturer spec
Brakes/Wheels/Tires
- Brakes
- Front - Drum Rear - Hydraulic DiscManufacturer spec
- Wheels
- Matte blackManufacturer spec
- Tires
- Front - 18 x 7-8 Rear - 18 x 9-8Manufacturer spec
Dimensions
- Length
- 57 in.Manufacturer spec
- Height
- 37 in.Manufacturer spec
- Width
- 36 in.Manufacturer spec
Electrical
- Lighting
- Single headlightManufacturer spec
Engine
- Bore x Stroke
- 47 x 51.8 mmManufacturer spec
- Fuel System
- CarburetorManufacturer spec
- Starting
- Electric / kickManufacturer spec
Operational
- Suspension
- Front - Single A-armRear - Swing arm Preload adjustable shocksManufacturer spec
From the dealer's page
A youth-sized sporting ATV with moderating parental control, the KYMCO Mongoose 90S is a slick sport-quad with credentials for beginners. Powered by an air-cooled, carbureted 89cc, 4-stroke engine, and operated via an automatic CVT with F-N-R, the chain-drive Mongoose 90S features single a-arm front suspension and a single swingarm rear suspension. Tires are 18 x 7-8 front/18 x 9-8 rear, and braking is by front drum and a rear disc with safety lock. It futures an electric start and auto-stop safety lanyard kill-switch, screw-type throttle limiter, and CVT collar that allows speed and power limits to be set. Available in Black or Orange. ANSI/SVIA Rated Y10 – The Mongoose 90S is recommended for riders 10 years of age and older. Mongoose 90S riders younger than 16 years of age must be supervised by an adult, and all ATV riders should take a training course.
Price history
Tracked since Oct 2, 2026 · last checked 3h ago
Price details as printed by the dealer
- Price$1,899.99
- PAULSON'S, INC. (this listing)
Prices as listed by dealers; auction results labelled; a dashed gap = no listed price.
Timeline
First seen
Oct 2, 2026
Market context
Comp set: 2016–2020 Kymco Mongoose 90s · 1 listing
LIMITED DATANot enough comparable listings for a median yet.