Vittoria Terreno T30 Fine Loose Tire - 700 x 31 Tubeless Folding BLK Cyclocross Endurance Graphene G2.0Vittoria Terreno T30 Fine Loose Tire 700 x 31 Tubeless Folding Black Cyclocross Endurance Graphene G2. 0. The Terreno T30 Fine Loose Gravel Endurance tire strikes the perfect balance between speed and control on fast rolling gravel. The T30 features a unique fish scale center strip and is optimized for low rolling resistance while maintaining braking traction and stability in demanding conditions. The siped shoulder knobs are engineered to dig into