Beta 390 RR-S 4T Tire Sizes
The Beta 390 RR-S 4T runs a 90/90-21 front tire and a 140/80-18 rear. Here are the tires we stock in those sizes, with stock, pricing, and whether each is a track, sport, or touring tire.
We're restocking tires for the Beta 390 RR-S 4T. Browse all tires or use the bike finder there.