2023 Kymco Mongoose 90S Specs, Top Speed, Price, Review

Kymco Mongoose 90S specs, Top Speed, Horsepower, Price, and mileage are listed below. We recommend keeping the model year in mind when reviewing Kymco Mongoose 90S specs.

The specifications of the Kymco Mongoose 90S, including its Top Speed, weight, MPG, horsepower, Seat Height, and other aspects, were published with the help of the manufacturer’s manuals.

Verify the Kymco Mongoose 90S specs with the seller. We will add the Kymco Mongoose 90S review video to assist you in your purchase.

Kymco Mongoose 90S Specs, Top Speed, Price, Review, MPG, Horsepower, Seat Height, Weight

Kymco Mongoose 90S Specs, Top Speed, Price, Review

Kymco Mongoose 90S ATV Designed for the youth rider. The ergonomic seat allows riders to move and shift around on the vehicle or get a better grip.


Engine Type SOHC 4-Stroke, 2 valve, single cylinder
Displacement 90cc
Bore x Stroke  47×51.8mm
Claimed Horsepower 6.4hp
Claimed Torque  4.85ft/lb @5500rpm
Fuel Management System Carburetor
Cooling  Fan Cooling
Ignition  Electric/Kick
CVT Automatic F-N-R
Final Drive 428 Chain


Front Brakes Drum
Rear Brakes Hydraulic Disc


Front Suspension  Single A-Arm/2.8″
Rear Suspension Single A-Arm/2.9″
Frame Pipe Under Bone
Shocks Oil Dampened Preload Adjustable


Tires-Front 18×7-8
Tires-Rear 18×9-8


Length 57.5″
Width  35.4″
Height 36.2″
Wheelbase  37″
Ground Clearance  5.9″
Claimed Dry Weight 264.6 lbs
Fuel Capacity 1.4gal


Warranty 1 Year Limited Factory Warranty
EPA/C.A.R.B. Compliant  Red Sticker
Colors Orange, Deep Green
Headlights Single
Wheel Colors Matte Black
Auto Stop Safety Lanyard Rear Grab Bar
Y-10 compliant for ages 10 and up with a weight limitation of 175lbs

2023 Kymco Mongoose 90S Price 

Price: $2,699 MSRP*

Kymco Mongoose 90S Top Speed

Top Speed:  35 mph (Est.)

Kymco Mongoose 90S Horsepower

Horsepower: 6.4hp

Kymco Mongoose 90S MPG

Miles per gallon: NA

Kymco Mongoose 90S Weight

Claimed Dry Weight: 264.6 lbs

Kymco Mongoose 90S Fuel Capacity

Fuel Tank Capacity: 1.4gal

Kymco Mongoose 90S Key Features

The 2023 Mongoose 90S is a Class Leading Fully Automatic Youth ATV with Reverse and the following features:

  • 90cc SOHC 4-stroke, 2-valve single cylinder engine, fan cooled
  • Forward, neutral and reverse transmission
  • Y-10 compliant for ages 10 and up with a weight limitation of 175lbs
  • CVT transmission for automatic shifting from low to high speeds
  • Front drum and rear disc brakes with parking brake lock
  • Single front A-Arms with preload adjustable shocks
  • Single rear tail light
  • Rear grab bar
  • Tether cord with safety cut off switch
  • Mounting tab for safety flag
  • New ergonomic seat
  • Rear swing arm suspension with adjustable rear shock
  • Sport style matte black steel wheels
  • Single headlight with low and high beam

Instrumentation: Gear position indicator

Free ATV Safety Training is offered with the buy of any KYMCO ATV and is advised for all first-time ATV purchasers without ATV experience.

The 2023 Mongoose 90S is available in Orange & Deep Green

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