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2021 Kawasaki KLX 140R Series [Model Overview]

2021 Kawasaki KLX 140R Series

The 2021 Kawasaki KLX 140R Series: The Best Bikes To Learn Trail Riding For The Intermediate Rider

The 2021 Kawasaki KLX 140R, 140R L, and 110R F dirt bikes are designed to be progressively used by teenaged riders to progress through to full sized off-road bikes. Powered by a 144cc air cooled, four-stroke single, all three variations of the bike share a five speed manual transmission and a light but positive clutch.

The KLX 140R is the base spec of the three and is aimed at the 10-14 year old rider with a low seat height and smaller wheels. It features disc brakes front and rear, an electric starter, and a full 7 inches of suspension travel.

The KLX 140R L from the Japanese manufacturer is the mid-spec, designed for 13-15 year olds. The only major difference from the base spec is larger wheels, with 19 inches at the front and 16 inches at the rear. It shares the same suspension movement of the base spec at 7.1 inches.

The Kawasaki KX110R F is the “big boy” bike of the lineup for fully grown young teens at 16+ years old, featuring full sized wheels and adjustable suspension. The front wheel is 21 inches, the rear is 18 inches, and the suspension can be adjusted to provide up to 7.5 inches of travel, and is meant to be the transition bike to more powerful or larger trail or off-road bikes.

The 2021 Kawasaki KLX 140R starts at $3,149 USD / $3,849 CAD,

The KLX 140R L starts at $3,449 USD / $4,249 CAD

The KLX 140R F starts at $3,749 USD / $4,449 CAD.

On this page: we’ve curated specs, features, news, photos/videos, etc. so you can read up on the new 2021 Kawasaki KLX 140R/140R L/140R F in one place.

2021 Kawasaki KLX 140R Series

Model Overview

General Info

  • Price: $3,149 USD / $3,849 CAD
  • Key Features:
    • Five speed manual transmission across all three models
    • Full disc brakes front and rear
    • Electronic starter

Main Specs

  • Engine Type: 144cc, air-cooled, 4-stroke, SOHC 2-valve single
  • Horsepower: Not provided by manufacturer
  • Torque: Not provided by manufacturer
  • Wet Weight: 205 lbs (93 kg)
  • Seat Height: 30.7 inches (780 mm)


2021 Kawasaki KLX 140R Series

2021 Kawasaki KLX 140R Series Specifications

From Kawasaki


Engine 144cc, air-cooled, 4-stroke, SOHC 2-valve single
Power Not provided by manufacturer
Bore x Stroke 58.0 x 54.4mm
Compression Ratio
Fuel System 20mm Keihin carburetor
Starter Electric


Clutch Wet multi-disc manual clutch
Transmission 5-speed, return shift
Final Drive Chain


Suspension Front 33mm telescopic fork/7.1 in
Suspension Rear Uni-Trak® linkage system and single shock with 5-way preload adjustability/7.1 in
Brakes Front Single 220mm petal disc with a dual-piston caliper
Brakes Rear
Single 186mm petal disc with single-piston caliper
Tires Front 70/100-17
Tires Rear 90/100-14
Fuel Tank Capacity 1.5 gal
Lime Green


Ignition Digital DC-CDI
Spark Plugs
Headlight LED
Tail Light LED


Overall Length 71.7 in
Overall Width 31.1 in
Overall Height 41.3 in
Wheelbase 49.6 in
Ground Clearance 9.3 in
Seat Height 30.7 in
Curb Weight 205.0 lb


Warranty 6 Months
Kawasaki Protection Plus 12, 24, or 36 months

2021 Kawasaki KLX 140R Series

2021 Kawasaki KLX 140R Series Features


2021 Kawasaki KLX 140R Series Photos

2021 Kawasaki KLX 140R Series Videos


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