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Extralite ceramic UltraPulleys 12-12 (Shimano road 11/12s-Sram road 11/12v-Campa 12s)
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-Pair of 12t ceramic pulleys, compatible with Shimano road 11/12s, Sram Road AXS 11/12s and Campagnolo 12s
-Compatible with Di2 12s, but requires Extralite Extrabolt 12.2C or equivalents M5x5x15.5 bolts
-Low friction seals
-Ceramic bearings
-Polymer teeth
-12.4gr the pair
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