XLC CR-A04 Chain Tensioner

Chain tensioner with a derailleur pulley for single-speed hubs

The XLC CR-A04 chain tensioner is made of black aluminum and fits derailleur hanger mounts. A chain tensioner ensures consistent chain tension while riding. The XLC Cr-A04 is designed for single-speed bikes, making this simple but efficient accessory a long-lasting companion on your bike tours.

Features of the XLC CR-A04 chain tensioner:

• Chain tensioner with two guide rollers for single-speed hubs
• 16-20 teeth, C-C 68 mm
• Increased tension capacity
• Not suitable for coaster hubs 
• Attaches to the derailleur hanger