Every watt deserves a precise path forward.
 
The X-Aeroring represents Carbon-Ti's latest evolution in lightweight aero drivetrain performance — combining structural carbon fibre, CNC-machined aluminium and Grade 5 titanium into one of the most distinctive chainrings available today.
 
Special product available only on request for time trial and triathlon.
Aerodynamic chainring made of structural carbon fiber with a glossy 3K finish. Single chainring with 62 teeth and a bolt circle diameter (BCD) of 110 mm, 4 arms, compatible with Shimano Dura-Ace FC-R9200 and FC-R9200-P, Shimano Ultegra FC-R8100 and FC-R8100-P, and Shimano 105 FC-R7100 cranksets.
 
Groupset compatibility: Shimano 11-12s, SRAM 11s, and SRAM AXS 12-13s. Not compatible with SRM Origin.
 
For mounting on Shimano Dura-Ace, Ultegra, and 105 12-speed cranksets, we recommend using the new specific X-Cover DA9200 1x kit.
 
Mounting on other Shimano 12-speed crank arms is possible with the X-Fix ROAD XS kit, available in various anodized colors.
 
Although equipped with an anti-drop profile, a chain guide is recommended when using derailleurs without a clutch or not designed for 1x use.
 
Please verify the maximum diameter (249 mm) before placing your order. 
 
100% made in Italy.
 
Key Features
Designed for time trial and triathlon use
Aerodynamic single chainring
Made from structural carbon fibre
Glossy 3K carbon finish
 
Specifications
60-tooth chainring
110 mm BCD
4-arm design
Weight: 215 g
Compatible with Shimano Dura-Ace FC-R9200 / FC-R9200-P
Compatible with Shimano Ultegra FC-R8100 / FC-R8100-P
Compatible with Shimano 105 FC-R7100 cranksets
Groupset compatibility: Shimano 11/12-speed, SRAM 11-speed, and SRAM AXS 12/13-speed
Not compatible with SRM Origin
Recommended to use with the X-Cover DA9200 1x kit when fitting to Shimano 12-speed Dura-Ace, Ultegra, or 105 cranksets
Can be fitted to other Shimano 12-speed crank arms using the X-Fix ROAD XS kit
Chain guide recommended when using derailleurs without a clutch or not designed for 1x drivetrains
 
What It's For
Riders building a fast, uncompromising time trial and triathlon bike where performance and detail matter equally.
Ideal for race bikes, premium custom builds and riders looking to reduce weight while improving shifting precision and aero without compromising drivetrain reliability.
Not simply lighter and more aero.
More deliberate.