Diamondback Singlespeed Chain Tensioner

This chain tensioner fits to your gear hanger in place of your rear derailleur and adjusts the tension on your chain when riding on a single rear sprocket.

Riding a Singlespeed can help bring back the joy you experienced riding your bike as a child.


  • Takes up chain slack when running Singlespeed on vertical dropout frames.
  • Converts any multi speed bike to a single speed
  • Floating pulley and spring adjusts for perfect chain tension
  • Mounts on derailleur hanger
  • Spring loaded chain tensioner
  • Fits up to 22 teeth sprockets
  • Adjustable chainline