Bici MTB HG XD MS Boost 6 pawls 120T 28H 32 fori 15x110 12x148MM 8-12 velocità

③ Sram XD 12 speed. Model:XM820 BOOST. Version: BOOST Front: 15 x 110mm, Rear: 12 x 148mm. Colour: Black，Color. ① SHIMANO 8 9 10 11 speed;. ② SHIMANO 12 speed. Weight: front 182g, rear 292g.

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