WTB Vulpine Tire – 700 x 40 TCS Tubeless Folding Black Light/Fast Rolling Dual DNA. Vulpine is the gravel revamp of a proven semi-slick mountain tread with years of swift efficiency under its belt. Ramped center knobs form a nearly uninterrupted centerline that decreases rolling resistance while its round tire profile is packed with short tightly-spaced knobs to provide predictable cornering traction on hardpack terrain. Delivering speed that lasts the large center knobs make the Vulpine highly resistant to wear and improve its lifespan compared to other gravel tires.

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