Miche X2 RD R81 Carbon chainring (For Ultegra 8100)

Every watt you generate deserves to be transmitted with total efficiency.

X2 RD is the chainring designed for those who demand the maximum: lightweight, stiff, and capable of transferring every watt with absolute precision.

Full compatibility with Ultegra 8100 crankset

Maximum freedom of choice

Compatible with Miche R12 inner chainrings as well as original Shimano ones, giving riders different setups.

The essence of this chainring lies in its meticulous engineering and the incredible attention to detail that Miche has always put into their products: a CNC-machined AL 7075-T6 aluminum plate merges with a structural 3K carbon layer, creating a unique synergy that delivers extreme stiffness, lightness, and top-level responsiveness in power transmission.
Its dedicated design makes it compatible with cranksets that have or do not have a power meter, ensuring flawless performance in every setup.

Because every watt matters
With X2 RD, it’s not just about pushing harder: it’s about maximizing every single watt you produce, transforming energy into speed, and feeling the difference with every pedal stroke.

Miche’s engineering process represents a rigorous synthesis of advanced design, technical development, and construction quality at the highest standards.

Every watt saved is not just efficiency: it’s time, it’s performance, it’s results.

Technical specifications:

Weight: 126 gr (50t)

12s Speed 

Material: Carbon + Aluminium 7075 T6 / CNC

BCD 110 / 4 holes

Compatible with SHIMANO® Ultegra R8100 cranksets