The OE tire sizes for the Kawasaki Z125 PRO (2021 model) are 100/90-12 front / 120/70-12 rear. Below are tires in these sizes, compared across brands. OE rim widths for this bike are not on file, so no rim-width badges appear. 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 (4 models)
Front + rear set: 4 models can cover both ends (matching sizes in bold, based on F=100/90-12 / R=120/70-12). Shop links search on the model name alone.
Dunlop's minibike sport tire, described as “dry grip and wear life in one” — this is the city-use type, street legal. Covers the Grom and Dax 125 OE sizes (120/70-12 front, 130/70-12 rear). The race-only TT93GP PRO with stickier compound is a different product.
Sizes: F 90/90-10, 100/90-10, 110/70-12, 120/70-12, 120/70-13 / R 90/90-10, 100/90-10, 120/70-12, 130/70-12, 130/70-13
Where to buy
Dunlop's scooter tire “built for grip and ride comfort you can trust in the rain.” 12–16 inch scooter sizes, and the 12-inch ones overlap the Grom family's OE sizes. Rear 130/70-12 and up are REINFORCED (extra load capacity).
Sizes: F 110/70-12, 110/90-12, 120/70-12, 110/70-13, 110/90-13, 120/70-13, 80/90-14, 90/80-14, 90/90-14, 100/80-14, 110/70-14, 110/80-14, 120/70-14, 120/80-14, 120/70-15, 80/90-16 / R 120/70-12, 130/70-12, 140/70-12, 130/70-13, 140/70-13, 150/70-13, 90/90-14, 100/90-14, 120/70-14, 140/70-14, 150/70-14
Where to buy
Dunlop's standard scooter tire — “light-footed, stable, a best match for scooters.” Broad 8–14 inch coverage.
Sizes: F 3.00-8, 2.50-10, 2.75-10, 3.00-10, 3.50-10, 80/100-10, 80/90-10, 90/100-10, 90/90-10, 100/90-10, 90/90-12, 100/80-12, 110/70-12, 120/70-12, 90/90-14, 100/80-14 / R 3.00-8, 2.50-10, 2.75-10, 3.00-10, 3.50-10, 80/100-10, 80/90-10, 90/100-10, 90/90-10, 100/90-10, 110/80-10, 90/90-12, 100/80-12, 120/70-12, 130/70-12, 100/90-14, 120/70-14
Where to buy
Michelin’s catalogue cites “excellent wet performance.” A current bias tire for smaller machines; we list 110/70-17 and 140/70-17 (150/60-17 is not offered in Japan). Source is Michelin’s official 2026 catalogue PDF.
Sizes: F 90/90-10, 100/90-10, 90/90-12, 120/70-12, 130/70-12, 80/90-14, 90/90-14, 70/90-17, 80/90-17, 90/80-17, 100/80-17, 70/90-14, 110/70-17 / R 90/90-10, 100/90-10, 90/90-12, 120/70-12, 130/70-12, 80/90-14, 90/90-14, 70/90-17, 80/90-17, 90/80-17, 100/80-17, 100/90-14, 130/70-17, 140/70-17
Where to buy
Front 100/90-12 options (5 total, 4 of them listed in the set section above)
Size 100/90-12: 1 exact, 4 in the same group. Shop links carry each tire’s own matching size.
Bridgestone's short-course minibike racing tire — “born to win minibike races.” Compounds: YCX (soft) and YCY (medium); the rear YCZ (hard) has been discontinued. The official page says nothing about street legality, so it is listed as unconfirmed here.
Sizes: F 100/90-12 / R 120/80-12
Where to buy
Rear 120/70-12 options
Every tire in this size is already listed in the front-and-rear section above.
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.