Product details
Description
A Stronglight External Dura Ace DI2 11 speed chainring with 49 teeth.
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)
Compatible with double chainring chainsets.
11 speed compatible.
4 Arms
Designed for SHIMANO DURA ACE FC-9000 and DI2, SHIMANO ULTEGRA FC-6800, SHIMANO 105 FC-5800
Material: Alu 7075-T6 CT² (Teflon Ceramic Treatment)
Developed for the E-shifting system but can also be used with standard derailleurs.
PCD 110mm
Teeth : 49.
Weight : 83g.