Blocco centrale bici strada mozzo freno a disco 36/54T cricchetto DT asse passante dente completo

Ratchet: 36T 54T. Base: DT full tooth structure flower drum. Material: Housing material AL6061-T6. AL7075 aluminum axis. AL7075 aluminum base. For base gauge: HG Shimano7-12 speed. Specification: 14G front and rear 24 holes.

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