Bicicleta de Carretera 12T 14T 16T 18T Polea Cerámica 11v 12v Desviador Trasero Ruedas Jockey

50mm(12T), 58mm(14T), 68mm(16T),77mm(18T). Weight: approx 14.9g(12T). 18T For Shimano R7000/R8000/R8050/R8070/R9170/R9150/R9100 etc.. 1pcs Rear Derailleur Pulley. (4) Extra Free Pulley Screw. 1pcs Pulley Screw.

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