Surly Singleator Chain Tensioner (Black)

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Price: $50.00

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Surly Singleator mounts right up to your derailleur hanger and provides a simple, effective, and adjustable means of tensioning the excess chain slack found in vertical dropout single-speed drivetrains.


  • Triple-sealed spring, large cog capacity and chain guides
  • Stainless steel pivot bushing
  • Includes two springs for upward or downward tension adjustment
  • Do not use with a coaster brake, fixed gear, multi-cog or multi ring drivetrains
  • Works best with cogs 24T and under
  • Not suitable for use on full suspension bikes
  • Can be configured to push down or push up on the chain. Ships with spring set to push down

Tools Required For Installation:

  • 18mm Cone Wrench
  • 4mm Allen Wrench
  • 5mm Allen Wrench
  • Small flat head screwdriver (Needed for changing spring configuration)
  • Torque Wrench w/ 5mm Allen Head (Torque to 9Nm)

This product was added to our catalog on January 26, 2021