KLX140R L tires
The OE tire sizes for the Kawasaki KLX140R L (2027 model) are 70/100-19 front / 90/100-16 rear. Below are tires in these sizes, compared across brands. OE rim widths are F1.40 / R1.85 (from official specs; used for the rim-width check). OE sizes can differ by model year and market — the sidewall of your own bike is the sure reference. This is a Japanese-market lineup; the sizes themselves are international.
→ Open this bike in the chart (filter and sort there)
Tires that cover front and rear (7 models)
Front + rear set: 7 models can cover both ends (matching sizes in bold, based on F=70/100-19 / R=90/100-16). Shop links search on the model name alone. “Narrower” means one or two steps below the OE size. “Rim width OK” means the tire maker’s published rim widths line up with the OE rim width. No badge means we could not confirm it; combinations we found to be wrong are left out entirely.
Dunlop calls it a “wide-range hard” tire, “covering hard through medium surfaces.” Not street legal.
Sizes: F 70/100-17, 70/100-19, 80/100-21, 90/100-21 / R 90/100-14, 90/100-16, 110/90-18, 120/90-18, 110/90-19, 120/80-19
Where to buy
Dunlop calls it a “wide-range medium-hard,” “covering medium through hard surfaces.” Not street legal.
Sizes: F 60/100-10, 60/100-12, 60/100-14, 70/100-17, 70/100-19, 80/100-21 / R 70/100-10, 80/100-12, 90/100-14, 90/100-16, 100/100-18, 110/100-18, 120/90-18, 100/90-19, 110/90-19, 120/80-19, 120/90-19
Where to buy
Dunlop calls it a “wide-range medium,” for medium surfaces broadly. Not street legal.
Sizes: F 60/100-10, 60/100-12, 60/100-14, 70/100-17, 70/100-19, 80/100-21 / R 70/100-10, 80/100-12, 90/100-14, 90/100-16, 100/100-18, 110/100-18, 120/90-18, 100/90-19, 110/90-19, 120/80-19, 120/90-19
Where to buy
Dunlop calls it a “wide-range soft,” “covering mud through medium surfaces.” Replaces the MX33, which is no longer in the official lineup. Not street legal.
Sizes: F 60/100-12, 60/100-14, 70/100-17, 70/100-19, 80/100-21 / R 70/100-10, 80/100-12, 90/100-14, 90/100-16, 100/100-18, 110/100-18, 120/90-18, 100/90-19, 110/90-19, 120/80-19, 120/90-19
Where to buy
Pirelli claims “peak performance on soft to mid-soft ground — mud, sand, grass, dry dirt.” A revised New MX32 Mid-Soft is sold alongside it. Competition only (NHS).
Sizes: F 2.50-10, 60/100-12, 60/100-14, 80/100-14, 70/100-17, 70/100-19, 80/100-21 / R 2.75-10, 80/100-12, 90/100-14, 90/100-16, 110/90-17, 100/90-19, 70/100-19
Where to buy
GP-21 front, GP-22 rear. IRC calls it an all-rounder “covering the range of surfaces you expect on a forest-road tour.”
Sizes: F 110/80-17, 70/100-19, 2.75-21, 3.00-21, 80/100-21 / R 120/90-16, 90/100-16, 130/80-17, 140/70-17, 4.60-17, 120/80-18, 4.10-18
Where to buy
Dunlop calls it an “all-round trail tire, stable from dirt through pavement.” A tubeless version for the Serow exists.
Sizes: F 70/100-19, 2.75-21, 3.00-21 / R 90/100-16, 4.60-17, 120/80-18, 4.10-18, 4.60-18
Where to buy
Front 70/100-19 options
Every tire in this size is already listed in the front-and-rear section above.
Rear 90/100-16 options (11 total, 7 of them listed in the set section above)
Size 90/100-16: 11 exact, 0 in the same group. 6 with no size data on file are out of scope. Shop links carry each tire’s own matching size.
Dunlop calls it a “wide-range sand,” for mud through sand. Unusually broad size range, 10 to 19 inch. Not street legal.
Sizes: R 70/100-10, 80/100-12, 90/100-14, 90/100-16, 110/100-18, 100/90-19, 110/90-19, 120/80-19
Where to buy
Pirelli lists it as “soft ground only — mud and sand,” with “high traction and self-cleaning.” Competition only (NHS).
Sizes: R 80/100-12, 90/100-16, 120/90-18, 100/90-19, 110/90-19, 120/80-19
Where to buy
Bridgestone lists it for “muddy surfaces (MUD)” — a race-developed tire. Not for public roads (Bridgestone’s own statement).
Sizes: F 80/100-21 / R 90/100-16, 100/90-19, 110/90-19
Where to buy
IRC states it is a “tire dedicated to hard enduro.” Its case is grip and climbing ability on rock, roots and stream beds — the tire that made “gummy” a category. Not street legal (IRC’s own statement).
Sizes: F 80/100-21 / R 90/100-16, 110/100-18
Where to buy
How to read this
- The 1–5 ratings are our own estimates. Not manufacturer figures, not measurements.
- Within one model, character and street legality both change with the size and the spec. Confirm with the manufacturer or a dealer before you buy.
- Shop links go to search results rather than product pages. Other sizes and older models will be mixed in.
- “Narrower” means one or two steps below the OE size. The “rim width OK” badge means the tire maker's published rim widths line up with the OE rim width; no badge means unconfirmed.
- Competition tires may not be used on public roads.