Shimano Dura Ace chainring for FC-R9100 2x11-speed Dura Ace cranksets with a bolt circle diameter of 110 mm.
The new 11-speed drive allows each driver to "tune" the bike for each specific application by various gradations.
Dura Ace Chainrings for FC-R9100 are available with different numbers of teeth:
34 teeth (MS)
36 teeth (MT)
39 teeth (MW)
42 teeth (MX)
50 teeth (MS)
52 teeth (MT)
53 teeth (MW)
54 teeth (MX)
55 teeth (MX)
Note: These are chainrings from different types (MS, MT, MW, MX). For optimal shifting performance only use chainrings from the same type.
Fitting for derailleur: 11-speed
Included in delivery: 1 chainring
Material: 34-42 teeth: aluminum
50-55 teeth: aluminium, carbon fiber reinforced polymer (CFRP)