XX Downhill Chainring

What Our Gearhead® Experts Are Saying:

"If you’re running Ochain with a Transmission build, this is the piece that ties it together. The 104 BCD interface bolts up cleanly, and the T-Type tooth design keeps the chain stable under heavy load. It’s durable, straightforward, and does exactly what a gravity chainring should."

When integrating Ochain into a modern Transmission drivetrain, compatibility and retention can’t be compromised. The XX Eagle Transmission Chainring 104 BCD is purpose-built to bridge that gap, delivering seamless integration within the T-Type ecosystem while supporting 104 BCD-mounted Ochain spiders.

The aluminum construction is engineered for durability in aggressive riding environments, and the T-Type tooth profile ensures optimized chain engagement across both 7-speed and 12-speed Transmission systems. Designed for use within the Eagle Transmission ecosystem, it maintains precise chain control under load while remaining backwards compatible with X-SYNC II and select SRAM downhill drivetrains. Available in 32T, 34T, and 36T configurations, it offers flexibility for gravity, slopestyle, and hard-charging trail applications. For riders demanding Ochain compatibility without sacrificing the performance benefits of T-Type shifting and chain retention, this chainring delivers secure engagement, clean integration, and race-ready reliability.