Vittoria Martello Race Tire - 27.5 x 2.4 Tubeless 2PLY Folding BLK Enduro 1C G2.0Vittoria Martello Race Tire 27. 5 x 2. 4 Tubeless 2PLY Folding Black Enduro 1C G2. 0. The Martello Race tire has been developed to provide the best combination of riding feeling and performance for technical trails at maximum speed. The design provides performance you expect on the most demanding and wide range of Enduro and DH courses. Start with a World Championship proven TNT bead add the proprietary 4C Graphene compound and top it off with a moto