Shimano 105 series 5800 Double 11sp Band On Front Mech
For use with 105 ST-5800 or Ultegra ST-6800 shifters only for optimum shifting performance. Wide inner link increased rigidity and takes front shifting performance to a new level, especially under heavy load. For 11-speed drivetrains. Long pull arm for light action spring reduces effort required to actuate shifts. Support bolt provides added stability.
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