EW-SD300 Di2 eTube Wires X-Large (60-64) longer wear life and reliable

longer wear life and reliable stopping power for use on carbon braking surfaces in all conditions

Ceramitech Bearings: Our Si3n4 hybrid ceramic bearings feature ultra-spherical silicon nitride balls matched to SAE 52100 chrome steel bearing races that have been processed with additional heat treatment and polishing steps

This derailleur is compatible with 7- or 8-speed drivetrains

This trick cassette also sports a semi-spider construction for a maximum stiffness-to-weight ratio and is available in myriad configurations to suit all your riding

360° reflectivity Fork Steel blades

EW-SD300 Di2 eTube Wires X-Large (60-64) longer wear life and reliableShimano EW SD300 Di2 eTube Wire is available in a variety of lengths. FEATURES: Compact design makes new electric components smaller and lighter EP8 EP800 Series Shimano 12 Speed Di2 compatible