85 SX 17/14 tires
The OE tire sizes for the KTM 85 SX 17/14 (2020–26) are 70/100-17 front / 90/100-14 rear. Below are tires in these sizes, compared across brands. OE rim widths are F1.40 / R1.60 (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.
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Tires that cover front and rear (5 models)
Front + rear set: 5 models can cover both ends (matching sizes in bold, based on F=70/100-17 / R=90/100-14). 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
Front 70/100-17 options (8 total, 5 of them listed in the set section above)
Size 70/100-17: 5 exact, 3 in the same group. 6 with no size data on file are out of scope. Shop links carry each tire’s own matching size.
IRC states it plainly: “OE tire on the Honda Cross Cub 110 / CT125.” 80/90-17 front and rear, in both tube (WT) and tubeless (TL) — pick the one that matches your wheel.
Sizes: F 80/90-17 / R 80/90-17
Where to buy
IRC positions it above the OE GP-5: “more off-road capability, strong on both paved and unpaved roads.” A single 80/90-17 shared front/rear, aimed at the Cross Cub 110 / CT125. A separate entry from the 21-inch GP-21/GP-22 series.
Sizes: 80/90-17 (front/rear split not stated officially)
Where to buy
The road-leaning trail tire; Dunlop cites “stability on pavement and wear resistance.”
Sizes: F 110/80-14, 80/90-17, 2.75-21, 3.00-21 / R 130/70-13, 80/90-17, 120/80-18, 4.10-18, 4.60-18
Where to buy
Rear 90/100-14 options (7 total, 5 of them listed in the set section above)
Size 90/100-14: 6 exact, 0 in the same group, 1 narrower. 6 with no size data on file are out of scope. Shop links carry each tire’s own matching size. “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 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
The rear companion: IRC's OE fitment list includes the Cross Cub 50 and the Super Cub PRO family. Two sizes, 80/100-14 (the Cross Cub 50's rear size) and 2.75-14.
Sizes: R 2.75-14, 80/100-14
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.