Shimano RD-RX815 GRX Di2 2x11-SPEED Rear Derailleur Bike Accessories Brand_Black Ops Brake pad composite is Resin

Brake pad composite is Resin with Metal Fibers

Upper: Quick fit upper

you can create a video of every wave you ride in front of your Surfline® camera

and a grippy outsole for ultimate traction when chasing those PRs

Countless effective edges work together to grip on a variety of terrain

Shimano RD-RX815 GRX Di2 2x11-SPEED Rear Derailleur Bike Accessories Brand_Black Ops Brake pad composite is ResinCage Length N A Total Capacity 38T Max Front Difference 17 Color SERIES COLOR Average Weight 287g Mount Direct attachment (conventional) Direct mount compatible Number Of Pulley Teeth 13 Series GRX Generation RX800 Max Low Sprocket 34 Min Low Sprocket 30 Rear Speeds 11 Top Normal Spring Type Shimano Shadow RD+