Miche X2 RD R81 Chainring – Maximum Precision in Power Transmission
Every watt generated deserves to be transferred with absolute efficiency. The Miche X2 RD R81 is the chainring designed for those who demand the utmost in stiffness, lightness, and precision in power transfer. Ideal for demanding cyclists and those seeking a real upgrade in their road bike's performance.
Dura-Ace 9200 and Ultegra 8100 compatibility
The X2 RD family is born from a shared vision focused on maximum performance, but develops two specific variants for different needs:
X2 RD R92 dedicated to SHIMANO Dura-Ace 9200 cranksets, with 50, 52, 54, 55, and 56 teeth.
X2 RD R81 developed for SHIMANO Ultegra 8100 cranksets, available in 50, 52, and 54 teeth.
In both versions, the same Miche construction philosophy is guaranteed: maximum precision, reliability, and 100% power transmission.
Maximum configuration freedom
The chainring is compatible with both:
Miche R12 internal gears
original Shimano gears
This allows you to create customized and optimized setups for every type of use and riding style.
Advanced engineering for superior performance
The heart of the Miche X2 RD R81 is a highly sophisticated manufacturing process, based on:
This combination guarantees:
The dedicated design makes it fully compatible with cranksets with or without power meter, ensuring flawless performance in any configuration.
When every watt counts
The X2 RD does not just improve power:
optimizes every watt, turning energy into real speed. It is the result of a precise engineering process, advanced design, and the build quality that has always characterized Miche products.
Every watt saved means:
more efficiency
more speed
more performance
more results
Technical Specifications
Code: CGX2LB8
Weight: 50T – 127 g
Speed: 12s
Material: Carbon + AL 7075 T6 / CNC
BCD: 110 / 4 holes
Miche crankset compatibility: SHIMANO® Ultegra R8100
Available teeth: 50 – 52 – 54
