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Surly Tuggnut Chain Tensioner for Horizontal DO

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 many dropouts without some serious grinding. So, Surly decided to design a chain tensioner that will keep that rear wheel static in most rear-facing horizontal dropouts. Plus, it even has a bottle opener!


  • Investment cast in stainless steel for durability
  • Thumbscrew, for tool-free adjustments
  • 2 axle holes for a wide range of fore/aft wheel positions
  • Includes an aluminum adapter that reduces the axle hole from 10mm to 6mm
  • Can be used with quick release or nutted axles
  • Sold as a single for the drive side, but two can be used if desired
  • $26.00
    Item is in stock


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