Chain tensioner "Jockey's Boxenstop" Series 1-3/DL/GP
With this tensioner you can adjust the chain in the usual way and/or underside the tensioner. So it's possible to use all common sprocket/crownwheel combination without using a stretched chain.
Suitable for the following combinations: 15/46, 15/47, 16/46, 16/47, 17/46, 17/47, 18/46, 18/47, 19/46, 19/47, 20/46, 20/47, 21/46, 21/47
Suitable for the following combinations: 15/46, 15/47, 16/46, 16/47, 17/46, 17/47, 18/46, 18/47, 19/46, 19/47, 20/46, 20/47, 21/46, 21/47
Made in Germany!