Description
ABSOLUTE BLACK Chainring Road oval 2-fold LK 110 4 hole asymmetric | Dura Ace 9100 | Ultegra R8000 | champagne outside
The Absolute Black chainrings are CNC machined from one piece of aluminum, creating the perfect combination of low weight and excellent durability for your bike. Elaborately milled switching ramps ensure excellent switching performance. For maximum shifting efficiency, the chainrings should be combined with the appropriately optimized small chainring (53-39, 52-38 / 36, 50-34). Thanks to the milling of a 5 mm thick aluminum plate Absolute Black chainrings are among the stiffest on the market. Due to the large cut-outs, the weight is still kept low and they make the chainrings an eye-catcher. The oval shape smoothes the force peaks during the crank rotation. As a result, you have a more even kick, especially on the mountain, and your muscles are less tired. The lower force peaks also reduce the load on the knees.
NOTE: The matching screw covers for your Shimano Dura-Ace or Ultegra crank you can find in our shop.
Technical specifications:
intended use : 2-speed racing bike
Material: aluminum 7075
bolt circle diameter : 110 mm Shimano asymmetric
Attachment: 4-arm spider
Number of teeth: 50, 52 or 53
Optimum chainring combinations: 53-39, 52-38 / 36 or 50-34
Compatibility cranks : Shimano Dura-Ace R9100, Ultegra R8000, Dura Ace 9000, Ultegra 6800
Compatibility chain: 10, 11, 12-speed
Assembly: outside
Ovalization: 10-11.2%; maximum diameter at 108-110.5 ° Cranking position after top dead center (depending on chainring size)
Color: champagne
50 teeth - 120g
52 teeth - 137g
53 teeth - 139g
Scope of delivery: 1x chainring
