The Surly 1x1 Singleator offers a reliable adjustable solution for tensioning chains on singlespeed drivetrains with vertical dropouts. Designed to mount directly to a standard derailleur hanger the Singleator features a triple-sealed spring floating 11-tooth pulley and fully adjustable chain line. Its forged body and stainless-steel pivot bushing ensure long-term durability while chain guides and a wide cog capacity support consistent quiet operation. Compatible with both 1/8" and 3/32" chains.

Triple-sealed spring large cog capacity and chain guides

Stainless steel pivot bushing

Forged body

Includes two springs for upward or downward tension adjustment. Push down spring installed push up spring in packaging.

Do not use with a coaster brake fixed gear multi-cog or multi ring drivetrains

Color

Black