Park Tool Derailleur Hanger Alignment Gauge

Using this tool is the best way to ensure accurate derailleur alignmentand#44; and prevent shifting

Park Tool Derailleur Hanger Alignment Gauge

Using this tool is the best way to ensure accurate derailleur alignmentand#44; and prevent shifting problemsScrews directly into rear mech hanger threadsGauge bar pushes gauge rod against the rear wheelMeasurements are taken at 6and44; 9and44; and 12 O Clock positionsThe tool is used to gently bend the mech hanger to the correct positionMade from heavy gauge steeland44; with a chrome plated finishUpdated over the longstanding DAG-1 the DAG-2 utilises a longer measuring pointerand44; longer threa

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