Shimano Dura-Ace 14t 1/8" Track Cog Black CheckoutSpec= For all 2015+rear derailleurs 60t standard for Road/Gravel and

60t standard for Road/Gravel and 80t stock on Mountain

2mm tubing 4pc design Revised geometry and shape Larger diameter top bend for cleaner look and more resistance to bending

Brake Lever Use Right Brake Lever Use Left Brake Lever Actuation Hydraulic Color Polar Grey Anodized

Ercolina Upper Body Power simulates in an extremely realistic way the movements of cross-county skiing

RSR - Building on the impressive original the new RSR compound is a dual layer tread rubber with the soft RSR compound on top and the stiff SRC on bottom

Shimano Dura-Ace 14t 1/8" Track Cog Black CheckoutSpec= For all 2015+rear derailleurs 60t standard for Road/Gravel andShimano Dura Ace Track Cogs1. 37" x 24 tpi Black Tooth Count 14 Teeth 14T Width 1 8"