High quality chain tensioner
The Shimano Alfine CT-S500 is a chain tensioner for the Alfine group. The chain tensioner is made of Aluminum and is suitable for a Maximum sprocket of 20T
About Alfine
Shimano Alfine is a group set for cyclists who do not want more than just the best. The series is made of the best aluminum and has a beautiful design that would not be out of place in the Louvre.