• Super strong, durable and affordable. 
• Highest quality: Made in the USA.
• Constructed from hardened steel with machined edges for a smooth running and quiet drivetrain.
• Has been a favorite of serious cyclists on both the street and velodrome for decades.
• Available in 17T.
• Please note, that the photos shown are of a 18T cog, but you are buying a 17T cog. Thank you!
• Shipping from Tokyo, Japan with FEDEX Priority Express, or if you are in a remote region, UPS.