【DESIGN FOR】This is designed for 8/9-speed bike, compatible for Shimano/SRAM. It is suitable for chain ring between 11-30/32/34T. Sprocket Range: 11-30/ 32/ 34T. Compatible: For SHIMANO kit 8-speed EF500, EF510, EF65, Acera M310, M360, M410; And for SRAM 8-speed X3, X4, X5, X7.
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