Park DAG-3 Derailleur Hanger Alignment Gauge Tool Dangerous Goods but you risk damaging your

but you risk damaging your expensive steerer tube or may end up with a misaligned star nut

You'll also need some Maxima 15wt/50 suspension fluid and some O-ring lube

Cons: They would not be great for tyres thinner than 2

Compatible with virtually all derailleur-equipped bicycles including Shimano Direct Mount hangers

Park DAG-3 Derailleur Hanger Alignment Gauge Tool Dangerous Goods but you risk damaging yourAn alignment gauge is essential for diagnosing and repairing bent or misaligned derailleur hangers which are often the source of shifting problems. The DAG 3 features an all new design, engineered and built to be light, accurate and versatile. Who's this item for: Mechanics looking for a long lasting, precise and versatile tool to re align their derailleur hangers. Combatibility: Compatible with 16" to 29"+ wheels (ISO ETRTO rim sizes from 317 to