Rotor round chainrings shim 12s/11s sram 11s shimano 4 bolt Installed

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  • Regular price $170.00 USD

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50-34 ("compact"): If you ride a lot in the mountains.

52-36 ("semi-compact"): A great all-round combination – a customer favorite!

53-39 ("standard"): Great for flat riding, time trialing, and very strong riders