Shimano BR-9000 R55C4 Brake Shoes - 2 Pairs Power Meters If you're running tubeless or

If you're running tubeless or running Presta tubes

typically with a post-mount caliper adapter required at this rotor size

keeping the chain cleaner and more efficient over a longer service life compared to untreated chains

so you always have documentation when it matters

Compatible with standard Shimano hydraulic MTB brake systems

Shimano BR-9000 R55C4 Brake Shoes - 2 Pairs Power Meters If you're running tubeless orWhy Choose the Shimano BR 9000 R55C4 Brake Shoes? The Shimano BR 9000 R55C4 Brake Shoes are the OEM replacement brake shoe assembly for Dura Ace 9000 series rim brake calipers, supplying a complete shoe with the R55C4 aluminum compound pad pre installed. The R55C4 compound is Shimano's current generation road rim brake formulation, optimized for aluminum braking surfaces with improved wet weather performance and pad longevity over the earlier R55C3.