DMR STS Chain Tensioner and Kits

Simple Tension Seeker (STS) chain tensioner
Available individually or packaged with a Singlespeed conversion kit for any 8-10sp HG cassette hub
Allows the use of a 1-speed drivetrain on a vertical dropout frame, maintains chain tension
Stainless steel arm mounts to derailleur hanger and dropout
Loosen bolt and swing down and back to adjust chain tension
High density polyurethane pulley with sealed cartridge bearings