Surly Hurdy Gurdy Chain Tensioner

Hurdy Gurdy is another nifty device that keeps a rear wheel from slipping forward in the dropout under pedal load. It's designed for Surly's Cross-Check's semi-horizontal front-loading dropouts, and will also work on many other similar dropouts. Hurdy Gurdy is investment cast of stainless steel for durability and good looks, and shares many of Tuggnut's design features. Its two axle holes allow for a wide variety of fore/aft wheel positions, it will work with nutted axles up to 10mm and also with standard QRs as well as bolted axles (make sure the adapter washer is seated).

Note: The Surly Hurdy Gurdy chain tensioner will not work with rear facing dropouts / track ends (like the ones usually found on track bikes). Plese use the Surly Tuggnut in those cases instead.