Trail & family

Kawasaki KLX140R 2026

Trail & family, 144cc 4T

Partly verified

Model year on file: 2026 only. Other years are added as their manuals are read.

No CPSC recall found for the 2026 Kawasaki KLX140R, checked 2026-10-15. Recalls

Spec card PDF

Wheels and tires

2 of 4 filled

Front rim: Not yet verified
Rear rim: Not yet verified
Front tire: 70/100-17; Research level: Spec sheet (research) · checked 2026-09-26 source [1]
Rear tire: 90/100-14; Research level: Spec sheet (research) · checked 2026-09-26 source [1]

Suspension

3 of 7 filled

Fork: 33mm telescopic fork; Research level: Spec sheet (research) · checked 2026-09-26 source [1]
Fork travel: 7.1 in (≈ 180 mm, converted by MotoXSports); Research level: Spec sheet (research) · converted from 7.1 in · checked 2026-09-26 source [1]
Shock travel: 7.1 in (≈ 180 mm, converted by MotoXSports); Research level: Spec sheet (research) · converted from 7.1 in · checked 2026-09-26 source [1]
Stock fork spring rate: Not yet verified
Stock shock spring rate: Not yet verified
Static sag, bike only: Not yet verified
Race sag, rider on: Not yet verified

Fluids and capacities

1 of 3 filled

Engine oil spec: Not yet verified
Engine oil capacity: Not yet verified
Fuel capacity: 1.5 gal (≈ 5.7 L, converted by MotoXSports); Research level: Spec sheet (research) · converted from 1.5 gal · checked 2026-09-26 source [1]

Dimensions

3 of 3 filled

Seat height: 30.7 in (≈ 780 mm, converted by MotoXSports); Research level: Spec sheet (research) · converted from 30.7 in · checked 2026-09-26 source [1]
Wheelbase: 49.6 in (≈ 1260 mm, converted by MotoXSports); Research level: Spec sheet (research) · converted from 49.6 in · checked 2026-09-26 source [1]
Weight: 205.0 lb (≈ 93 kg, converted by MotoXSports); Research level: Spec sheet (research) · converted from 205.0 lb · checked 2026-09-26 source [1]

Gearing

0 of 5 filled

Stock front sprocket, stock rear sprocket, chain pitch, stock chain links, stock final drive ratio: Not yet verified

Service specs

0 of 5 filled

Fork oil, brake fluid, fuel octane, idle speed, valve clearance: Not yet verified

Solid marks are owner's-manual pages; hollow marks are manufacturer web or spec-sheet figures still waiting on a manual page. Last reviewed 2026-09-26. Rows marked not yet verified are blank on purpose.

Buying parts

The stock sizes and specs this bike left the factory with, each with its source. Take them to any shop.

Retailer links below are affiliate links: we may earn a commission, at no cost to you, and it never changes the specs. Affiliate disclosure.

Tires: Front tire 70/100-17 Manufacturer spec sheet (research)Rear tire 90/100-14 Manufacturer spec sheet (research)Front tires 70/100-17 at MotoSport Tubes 70/100-17 at MotoSport Rear tires 90/100-14 at MotoSport Tubes 90/100-14 at MotoSport

In stock at MotoSport

Prices from MotoSport’s catalog of Oct 26, 2026; check today’s price before you buy.

Front tire, stock size 70/100-17

Rear tire, stock size 90/100-14

Prices and stock from MotoSport's product catalog on Oct 26, 2026; they change, so check the price at MotoSport before you buy. Products are chosen by exact stock size, code or oil viscosity from the specs above, known brands first, then price. We have not tested them.

8 part specs not yet verified; see data coverage.

Use this bike

Tools for this bike

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Service schedule

45 rows from the owner's manual schedule, pp. 39-42, counted in hours, at these intervals:

Initial 5 hours
Every 50 hours
Every 100 hours

Check what's due or track it in My Bike. Buying one used? The hours check lists what the schedule calls for by its meter reading.

Riding

Where kids can ride: tracks and areas whose own pages mention young riders.

Gearing tool

The calculator prefills from this bike once its stock sprockets are verified. It works with any numbers in the meantime.

Open the gearing calculator

What's missing

0 of 29 fields read off a manual page.

Not yet verified (20): front sprocket, rear sprocket, chain pitch, chain links, front rim, rear rim, fork spring rate, shock spring rate, static sag, race sag, engine oil spec, engine oil capacity, tire pressure (off-road), chain slack, spark plug and gap, fork oil, brake fluid, fuel octane, idle speed, valve clearance.

From a spec sheet, awaiting a manual page (9): front tire, rear tire, fork, fork travel, shock travel, fuel capacity, seat height, wheelbase, weight.

See coverage for every bike

Sources

1
Kawasaki 2026 KLX140R specificationsManufacturer web or spec sheet, research level. Covers front tire, rear tire, fork, fork travel, shock travel, fuel capacity, seat height, wheelbase, weight; checked 2026-09-26.

Always confirm against the manual for your exact year before ordering parts or setting up suspension. Torque specs are deliberately not published here. How we verify a value.

Your manual prints something different? Report a value with the page it is on; every fix is listed in the corrections log.

My settings

Date / track
Sprockets run
Race sag / free sag
Fork air pressure or spring
Fork clickers (compression / rebound)
Shock clickers (low / high / rebound)
Tire pressures (front / rear)
Notes

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