Surly Tuggnut Chain Tensioner

Chain tensioner for easy chain tensioning and beverage opening. 

Size chart

5'4 - 5'7 49CM 30.2IN
5'7 - 5'10 52CM 31.3IN
5'10 - 6'1 55CM 32.5IN
6'1 - 6'3 58CM 33.6IN
6'3 - 6'6 60CM 34.8IN

Chain tensioners are great for dialing in chain tension, keeping your chain tight, and keeping your dropouts from getting marred by your wheels. While not absolutely necessary, they make your life a little easier. This one from Surly is heavy duty and of course incorporates a bottle opener. Allows for tensioning with no additional tools and all parts are also individually replaceable. 

  • Includes: One Tuggnut and QR adapter
  • Material: Steel
  • Color: Silver
  • Fitment: All single speed or fixed gear bikes with horizontal dropouts 

These are heavy duty tensioners and only one is needed on the drive side for most conditions. Two are only needed if you are having a hard time dialing in chain tension, are running a quick release, or are using these to run Wabi wheels on non Wabi frames with thin dropouts (under 5mm in thickness).