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Stone 145BCD Chainring Round Chorus Super Record 11s CP Crankset for Campagnolo 9 10 11 12 speed
Material: High strength Aluminum 7075-T651, supplied by USA company Aleris who is supplier to aircraft make Airbus, Boeing and Bombardier.
CNC process precision:0.03mm
Chain fit: 9/10/11/12 speed
Fit crankset: for campagnolo chorus, record, super record 11s
Surface treatment: Anodize, high speed CNC