You can find all spare parts and components from top brands like Shimano at Escapa.
Like the Shimano Dura-Ace RD-7900 9/10-speed pulley set for road bikes.
The Shimano Dura-Ace RD-7900 9/10-speed pulley set for road bikes features low friction thanks to its sealed bearings.
Compatible with: Shimano (RD-7900, RD-7970, RD-7800, RD-7700); 9/10-speed