These DMR Chain Tugs are designed to keep a 10mm hub axle in place within a 10mm horizontal dropout frame. These DMR Chain Tugs are adjustable forwards and backwards within the dropout to keep the tugs perfectly square and to keep the wheel tracking straight and chain tight in single speed applications.. Easy adjustability.. • For 10mm Dropouts.. • CNC Machined Aluminium.. • 10mm Adjuster Nut.. • 3mm Allen Key.
