Shimano RD-RX815 Guide & Tension Pulley Set$14
Tension and guide pulley set for the Shimano GRX Di2 RD-RX815 11-speed rear derailleur. Set consists of guide and tension pulley with 13 teeth for smooth running each.
Manufacturer item code: Y3HS98010
Included in delivery: 1 pair of jockey wheels (tension and guide pulley)