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

X2 RD is the gear designed for those who demand the best: light, stiff, and able to transfer every watt with absolute precision.

The X2 RD R92 and the X2 RD R81 come from the same vision but specialize for different targets.

The first was specifically developed for Dura-Ace 9200 cranksets, offering the widest range with chainrings from 50 to 56 teeth (50, 52, 54, 55, 56). The second is developed for Ultegra 8100 cranksets with three targeted configurations: 50, 52, and 54 teeth, maintaining the same construction philosophy.

Both are compatible with Miche R12 internal gears as well as original Shimano ones, offering different setups for every need.

The key to this gear lies in its meticulous engineering and great attention to detail that we have always put into our products: a plate in AL 7075-T6 aluminum CNC machined fuses with a structural plate in 3K carbon, creating an alchemy to form a unique combination that guarantees extreme stiffness, lightness, and highly responsive power transfer.

The dedicated design makes them compatible with cranksets with or without power meters, ensuring flawless performance in every setup.

With X2 RD It’s not just about pushing harder: it’s about maximizing every single watt produced, turning energy into speed, and feeling the difference with every pedal stroke.

The Miche engineering process represents a rigorous synthesis of advanced design and top-quality craftsmanship.

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

Speed: 12s
Material: Carbon + AL 7075 T6 / CNC
BCD: 110 / 4 holes
Miche crankset compatibility: SHIMANO Dura Ace R9200

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Miche X2 RD R92 Chainring

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