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Product Code: 910-21-351
GOMME 28 x 1
WTB STX i23 tubeless-ready rims / Shimano MT400 hubs
75 Threaded Steel Hub 110mm on Bearings for 1V Nut - Silver Aluminum Rim MVTEK
precise groupset designed for trail
Calzini Castelli Fast Feet 4 2026 Biciclette Elettriche da Corsa Product Code: 910-21-351Castelli Fast Feet socks have been developed and tested to deserve the "aerodynamic" label. There are many so called "aerodynamic socks" available on the market. But only Castelli Fast Feet 4 socks have been developed and tested to truly deserve this name. The few socks tested were probably evaluated under static conditions, without movement because its easier. But the foot is always moving, which is why a model was created to replicate the movement
