SURLY Hurdy Gurdy Tensioner

Surly's Hardy Gurdy is a chain tensioner designed for front-open horizontal and semi-horizontal dropouts to hold the wheel in place as pesky pedaling forces try to pull it forward.

The Hardy Gurdy can be used with Surly Crosscheck dropouts and many forward-open 10mm axle compatible dropouts. The shaft can be used with 9.5mm and 10mm solid, quick release, and bolt-on axles (Surly Ultra New Hubs) that use 6mm bolts.

Stainless steel is used for the tensioner body and screws for proper strength and corrosion resistance when installed, but also because the Surly staff loves shiny things.

The HardyGuardi allows for quick and easy wheel positioning and chain tensioning without the need for tools (after loosening the axle nuts and bolts, of course).