SURLY Singleator Chain Tensioner - Black Compatio_Enriched Nickel plated finish for corrosion

Nickel plated finish for corrosion resistance

Two piece set

One oversized spindle to work across every bottom bracket standard

a native of South Africa

3M Scotchlite reflectors

SURLY Singleator Chain Tensioner - Black Compatio_Enriched Nickel plated finish for corrosionSurly Singleator mounts right up to your derailleur hanger and provides a simple, effective, and adjustable means of tensioning the excess chain slack found in vertical dropout single speed drivetrains. Triple sealed spring, large cog capacity and chain guides Stainless steel pivot bushing Includes two springs for upward or downward tension adjustment Do not use with a coaster brake, fixed gear, multi cog or multi ring drivetrains Source: Quality