Shimano are the biggest bicycle component producer in the world. Tiagra is one of their entry level lines. At 10 speed with a range of 11-25T, it is perfect for road riding. It is a well machined, quality component for fast and accurate shifting.
. CS-HG500-10
. Series: Shimano
. Speed: 10
. Chain Compatibility: Super narrow HG for 10-speed
. Ratio: 11-25T
. Sprockets: 11 / 12 / 13 / 14 / 15 / 17 / 19 / 21 / 23 / 25