DMR STS Chain Tensioner Stainless Steel Silver. Converts geared bikes to single speed and bolts into most vertical dropouts in minutes. Designed for harder riding styles such as dirt jumping street park etc.

Stainless steel body provides strength and stiffness

Works in conjunction with frames derailleur hanger and hub axle

Adjustable pitch

PU pulley uses sealed bearings

Designed to be used with geared chains

Do not use with a coaster brake or fixed gear

103g