Mon - Fri: 10:00am - 7:00pm Sat: 10:00am - 6:00pm Sun: 10:00am - 5:00pm
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.