Beta RR 400 Tire Size
The Beta RR 400 (398cc) takes a 90/90-21 front tire and a 140/80-18 rear tire.
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Key takeaways
- Front tire: 90/90-21.
- Rear tire: 140/80-18.
- Any tire made in the same size fits - shop across brands on price and grip.
- Covers 2006.
Verified fitLast checked
Sources: bikez.com motorcycle specifications
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.
Buy tires for your Beta RR 400
These are the OEM sizes. Any tire made in the same size fits the rim - so you can shop across brands (Michelin, Dunlop, Pirelli, Shinko, and more) on price, grip, and mileage. Replace front and rear as a matched set where you can.
Front tire: 90/90-21Shop every brand in this sizeShop Rear tire: 140/80-18Shop every brand in this sizeShop
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Frequently asked
What size tires does a Beta RR 400 take?
The Beta RR 400 takes a 90/90-21 front tire and a 140/80-18 rear tire.
Can I fit a different brand of tire on a Beta RR 400?
Yes - any tire made in the same size fits the rim, so you can choose across brands (Michelin, Dunlop, Pirelli, Shinko, and others) on price, grip, and mileage. Keep front and rear a matched pair where you can.