890 ADVENTURE R tires

The OE tire sizes for the KTM 890 ADVENTURE R (2025–26 models) are 90/90B21 front / 150/70B18 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.

Original equipment tires and recommended pressure

Solo. Off-road: 180/180 kPa. With passenger/full payload: 240/290 kPa (2025 manual), 260/290 kPa (2026 manual). Converted from the owner's manual bar values.

May differ by model year, market or batch. Pressures are cold values. Always check the label on the bike and the owner's manual. Sources (manufacturer): [1] [2]

→ Open this bike in the chart (filter and sort there)

Tires that cover front and rear (17 models)

Front + rear set: 17 models can cover both ends (matching sizes in bold, based on F=90/90B21 / R=150/70B18). 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.

Front 90/90B21 options (83 total, 17 of them listed in the set section above)

Size 90/90-21: 34 exact, 44 in the same group, 5 narrower. 5 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.

Rear 150/70B18 options

Every tire in this size is already listed in the front-and-rear section above.

See also

Bikes with the same OE sizes, front and rear

• KTM 790 ADVENTURE / R
• KTM 890 ADVENTURE
• KTM 890 ADVENTURE R RALLY
• KTM 1290 SUPER ADVENTURE R
• KTM 1390 SUPER ADVENTURE R
• Ducati DesertX / Discovery
• Ducati DesertX Rally
• Triumph Tiger 1200 Rally Pro / Rally Explorer / Desert Edition
• Honda CRF1100L Africa Twin
• Honda CRF1150L Africa Twin / Enduro Sports
• Honda XL750 Transalp (incl. E-Clutch)
• Yamaha Ténéré 700

• All KTM models (OE sizes)
• Find forest roads: Forest road map of Japan (location and length, in Japanese)

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.