X-CarboRing and X-CarboRing EVO are the latest evolution in super-lightweight chainrings for road bikes, featuring a composite structure made of aluminum alloy and carbon fiber, developed by Carbon-Ti. The structural carbon fiber body is CNC machined and features Grade 5 titanium pins shaped to allow for lightning-fast and precise shifting, with both mechanical and electronic derailleurs. Each individual tooth in Al7075-T6 aluminum alloy is individually CNC machined with a specific shape to optimize performance in all conditions.

• X-CarboRing EVO 52x110 DA9200 (4 arms)

AL7075-T6 aluminum alloy crown, structural carbon fiber with glossy 3K finish and Grade 5 titanium pins.
52-tooth outer ring and 110 mm bolt circle diameter (BCD) 4 arms, compatible with Shimano Dura-Ace FC-9200, Ultegra FC-8100, SRM Origin, Rotor Power Meter INSpider, and Shimano Dura-Ace FC-R9200-P power meters.
Compatible with Shimano Dura-Ace 9200, Ultegra 8100 groupsets and all previous 11-speed groupsets.
Not compatible with Sram AXS 12-speed groupsets (choose specific X-AXS chainrings).

• X-CarboRing EVO 50x110 DA9200 (4 arms) Power Meter 

AL7075-T6 aluminum alloy crown, structural carbon fiber with glossy 3K finish and Grade 5 titanium pins.
50-tooth outer ring and 110 mm bolt circle diameter (BCD) 4 arms, compatible with Shimano Dura-Ace FC-9200, Ultegra FC-8100, SRM Origin, Rotor Power Meter INSpider, and Shimano Dura-Ace FC-R9200-P power meters.
Compatible with Shimano Dura-Ace 9200, Ultegra 8100 groupsets and all previous 11-speed groupsets.
Not compatible with Sram AXS 12-speed groupsets.

• X-CarboRing 34x110 (4 arms)

AL7075-T6 aluminum alloy crown, structural carbon fiber with glossy 3K finish and Grade 5 titanium pins.
34-tooth internal gear and 110 mm bolt circle diameter (BCD) 4 arms.
Compatible with Shimano Dura Ace FC-9100 and FC-9000, Ultegra FC-8000 and FC-6800 or SRM Origin cranksets and Shimano 11-12 speed and SRAM 11 speed groupsets.
Compatible with X-Carboring EVO 50 x 110 DA9200 (4 arms), X-Carboring EVO 50 x 110 DA9100 (4 arms), X-Carboring EVO 50 x 110 (4 arms) chainrings and previous similar non-“EVO” models.

• X-CarboRing 36x110 (4 arms)

AL7075-T6 aluminum alloy crown, structural carbon fiber with glossy 3K finish and Grade 5 titanium pins.
36-tooth internal gear and 110 mm bolt circle diameter (BCD) 4 arms.
Compatible with Shimano Dura Ace FC-9100 and FC-9000, Ultegra FC-8000 and FC-6800 or SRM Origin cranksets and Shimano 11-12 speed and SRAM 11 speed groupsets.
Compatible with X-Carboring EVO 52 x 110 DA9200 (4 arms), X-Carboring EVO 52 x 110 DA9100 (4 arms), X-Carboring EVO 52 x 110 (4 arms) chainrings and previous similar non-“EVO” models.

The box includes Carbon-Ti X-CarboRing and/or X-CarboRing EVO and the kit X-Cover DA9200 Black