A Stronglight internal Campagnolo Type D 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 : Ultra Torque Super Record - Record - Chorus - Athena Alu
Material: Alu 7075-T6 CT2 (Teflon Ceramic Treatment)
5 Arms (5th arm not threaded)
PCD 110mm
Teeth : 39.
Weight : 43g.