The Teravail Washburn is their fastest-rolling gravel tire, built for race-day efforts on hard-packed gravel and backroads but practical enough for your daily commute and rides around town.The center slick minimizes rolling resistance for greater speed and momentum, while the transition knobs and raised side lugs are spaced out to provide cornering traction and shed debris.The 650b x 47 mm size offers increased volume for a larger contact patch and more gripWhether your route covers rough back roads or fast gravel track, or even both in the same day, The Washburn Tyre is built for the job. Its centre slick provides awesome rolling efficiency on pavement and packed dirt, while the shoulder lugs take over in the turns, digging in for confidence in loose corners ... More info