- 50mm chainline for GRX cranks only. Fits RX810 cranks only. Aero rings are not compatible with GRX 600 series cranks
- Road/Cyclocross/Gravel ring with Drop-Stop B tooth design to prevent unwanted chain drop
- Drop-Stop ST fits Shimano HG+ and KMC 12sp chains only
- Designed and manufactured in the USA from 7075-T6 aluminum alloy
UPC: 810006809169