Valve core replacement for your Presta valves. Presta mechanism speci?c replacement for all Vittoria Multiway and Singleway valves but also compatible with Presta valves of other brands. We recommend replacing the valve mechanism with each tyre change.Valve core replacement for your Presta valves.Presta 밸브의 밸브 코어 교체.Presta mechanism speci?c replacement for all Vittoria Multiway and Singleway valves but also compatible with Presta valves of other brands.모든 Vittoria Multiway 및 Singleway 밸브에 대한 Presta 메커니즘 특정 교체품이지만 다른 브랜드의 Presta 밸브와도 호환됩니다.We recommend replacing the valve mechanism with each tyre change.타이어 교체 시마다 밸브 메커니즘을 교체하는 것이 좋습니다.