Get all your drivetrain parts from Escapa and Shimano. The Shimano Ultegra FC-R8100 Chainring, with its special tooth profiles, mounting pins, and climbing aids, enables particularly smooth and fast shifting. With these, shifting under load—which you’d otherwise only be accustomed to with a rear derailleur—is possible without any issues. Its carbon-fiber-reinforced plastic construction (large chainring) with aluminum teeth helps keep weight low while increasing torsional stiffness. The hollow profile of the large chainrings also contributes to this.
NOTE: The letter combinations (NK, NH) following the number of teeth must match for both large and small chainrings. The Ultegra FC-R8000 chainrings have been specially matched to each other thanks to their shifting aids and can only achieve their superior shifting performance in the combinations provided by Shimano.
Technical Specifications:
Intended use: road, triathlon
Material: aluminum
Bolt circle diameter: 110 mm asymmetric
Mounting: asymmetric 4-arm spider
Number of teeth (compatibility index): 34 (NK), 36 (NH) teeth
Compatible cranksets: Shimano Ultegra FC-R8100
Compatible chain: Shimano HG+ 12-speed
Mounting: internal
Chainline: 44.5 mm
Offset: default
Color: Black
Approximate weight: 34 teeth - 33 g, 36 teeth - 34 g
