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Surly Tuggnut Chain Tensioner

Loose Cycles

Surly Tuggnut Chain Tensioner


Ever stomp on the pedals just to have your rear wheel slide forward in the dropouts and throw your chain? There are lots of BMX-style tensioners out there, but few of them fit in our dropouts without some serious grinding. So, we decided to design a chain tensioner that will keep that rear wheel static in our dropouts... and most other kinds of rear-facing horizontal dropouts. Plus, ours will open up a bottle o' brew.

  • The body is investment cast in stainless steel for durability.
  • Features a thumbscrew and two axle holes for a wide range of fore/aft wheel positions.

Comes with an aluminum adapter to reduce the axle hole from 10mm to 6mm, so you can use it with quick-release axles, in addition to nutted axles.