Surly Singleator Single-Speed Chain Tensioner – Black. The Surly 1×1 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.
- TECH SPECS

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