Shimano Dura-Ace 14t 1/8" Track Cog Black CheckoutSpec= For all 2015+rear derailleurs RSR - Building on the

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

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

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

VP65 works best on top of a couple of layers of a slightly harder wax

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

Shimano Dura-Ace 14t 1/8" Track Cog Black CheckoutSpec= For all 2015+rear derailleurs RSR - Building on theShimano Dura Ace Track Cogs1. 37" x 24 tpi Black Tooth Count 14 Teeth 14T Width 1 8"