Guarnitura bici mtb bambino 89/98/110/127/140/150mm braccio pedivella bici bambino 25-40T
Crank Length : 89/98/110/127/140 /150mm. Suitable for: Child bike. ◆Only 25T chainring is not the Narrow and Wdie Tooth. Number of teeth: 9-12 speed compatible. Weight:About 500g(127mm). Colour: Matte Black.