VITTORIA Martello Tire - G2.0 - 4C - 2PLY Sunshine_Enriched Riders want a derailleur that

Riders want a derailleur that shifts on command

CNC-machined from 7000 series aluminum

With reliable SHIMANO bearings and seals

Same light shifting operation as top tier road systems

ISO Diameter: 507 / 24-inch BMX

VITTORIA Martello Tire - G2.0 - 4C - 2PLY Sunshine_Enriched Riders want a derailleur thatFor technical Enduro trails. Martello hammers home the performance you expect, on the most demanding Enduro and DH courses. Looking for the one tire to tackle a wide range of courses? This is the ticket. How does the Martello deliver this level of performance? Start with a World Championship proven TNT bead, add the proprietary 4C Graphene compound, and top it off with a moto inspired tread design with progressive width siping. This last part is key,