A 50 tooth Stronglight External Chainring for Campagnolo 9/10 speed gearing (Type B).
Made from 7075-T6 aluminium.
Made for double ring chainsets.
PCD : 135mm.
5 Arms
Teeth : 50.
Designed for : Ultra Torque Centaur Carbon - Centaur Alu 2009-2010 - Veloce - Mirage - Fulcrum R