Shimano Dura-Ace 15t 1/8" Track Cog Black Size:15T smooth surface for greater abrasion

smooth surface for greater abrasion resistance in comparison to ropes with standard construction and similar diameters

Small zippered top pocket stores smaller items

Outer Fabric:- 200-denier urethane-coated ripstop nylon

Women-specific XT2® antibacterial performance lining and snap-in SL2 earpads add comfort and warmth

Volume- 1160 cu-ins

Shimano Dura-Ace 15t 1/8" Track Cog Black Size:15T smooth surface for greater abrasionYou've got to have the right ratio for the track, and Shimano's Dura Ace cogs come in a range of tooth counts so you can always be prepared. Manufactured from durable chromoly steel, each cog is machined to run perfectly straight.