Proven to be the fastest pulley system chosen by many of the world s leading cycling teams and professional triathlete optimized tooth designs offer 3-5 times longer life than standard oe pulleys coated: metallic layer that covers bearing races making them 75% harder than steel. Even lower friction and highly resistant to corrosion standard: low drag with hardened steel races and ceramic ball bearings 9100 9150 8000 ss 8050ss is not compatible with 8000-gs or 8050-gs use shimano 11sp system 9100 9150 8000 ss 8050ss is not compatible with rx800 805 use shimano rs80 805 system in the box: complete upper and lower ospw system 15ml ceramicspeed bearing oil dropper bottle
Brand: Ceramic Speed
