A Stronglight internal Shimano Dura Ace FC-9000 11 speed chainring with 39 teeth.
Compatible with double chainring chainsets.
Teflon ceramic treated aluminum for a very hard surface and greater longevity.
Reduced friction
Abrasion resistance
Corrosion resistance
Noise dampened
Increased accuracy of gear changing (notably under the effort during a race)
2x11 speed compatible : SHIMANO DURA ACE FC-9000 + DI2, SHIMANO ULTEGRA FC-6800, SHIMANO 105 FC-5800
Material: Alu 7075-T6 CT2 (Teflon Ceramic Treatment)
4 Arms
PCD 110mm
Teeth : 39
Weight : 32g.