Vittoria e-Martello Tire - 29 x 2.4 Tubeless 2PLY Folding Black G2.0. e-Martello hammers home the performance you expect while extending your ride. Looking for the one tire to tackle a wide range of courses? This is the ticket. e-Martello features a 4C Graphene compound combined with a moto-inspired tread design and progressive width siping. This design provides for a progressive feel on the effective edge allowing for that fine-touch tactile feel that riders expect. Whether shredding rocks roots or mixed terrain e-Martello delivers.