Rotor’s new 2x Direct Mount Common Tooth chainrings are available oval and spherical variations, and like all of their chainrings, they’re light-weight and stiff.
The “common” a part of the product title means common compatibility with different drivetrains. Which means, they’re designed to work with each 11-speed and 12-speed chains from Shimano, SRAM, KMC, Campagnolo, and many others.
That’s really a little bit of an accomplishment, as many aftermarket chainrings are optimized round SRAM and different third occasion chains…or Shimano. Rotor’s new 2x rings deal with each with their patented design.


The chainrings are created from a single piece of 7075 aluminum, making their lighter and stiffer than double chainrings constructed round particular person rings with a spider. for a 2x meeting you may have in your bike. Rotor says they’re as much as 30g lighter versus a ROTOR 110×4 meeting, they usually’re method stiffer.
Rotor 2x chainring choices embrace 48/31, 50/34, and 52/36 tooth combos for each spherical and oval. MSRP is $247.10 every.
RotorBike.com