FC11 RE093C 170mm 39/53 Carbon. FC11 RE293C 172.5mm 39/53 Carbon. FC11 RE593C 175mm 39/53 Carbon. FC11 RE793C 177.5mm 39/53 Carbon. FC11 RE893C 180mm 39/53 Carbon. A new teeth design plus the new 8 ascending and 2 descending zones of the chainring enable top-class performance allowing even faster and more precise shifts.
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