You'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.
|Option||Barcode||Manufacturer's Part Number||Vendor Number|
|13T / 1/8-inch||689228170094||Y27913100||QBP-FW6885|
|14T / 1/8-inch||689228170117||Y27914100||QBP-FW6886|
|14T / 3/32-inch||689228170100||Y27914000||QBP-FW6881|
|15T / 1/8-inch||689228170131||Y27915100||QBP-FW6887|
|16T / 3/32-inch||689228170148||Y27916000||QBP-FW6883|