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WTB STX i23 tubeless-ready rims / Shimano MT400 hubs
Product Code: 910-21-351
Offers style and support with a beautiful handmade cover
- Lunghezza cavi: 25 cm (2 cavi di carica e 2 cavi di scarica)
more puncture-resistant
Calzini Castelli Fast Feet 4 2026 Biciclette Elettriche da Corsa WTB STX i23 tubeless-ready rimsCastelli 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
