Park Tool Derailleur Hanger Alignment Gauge (DAG-3) size-750ml About Shimano Altus BL-MT200 Left

About Shimano Altus BL-MT200 Left Hydraulic Brake Lever

quickly and easily taking the guesswork out of knowing when chain replacement is necessary

135 700 25c 25-622 Foldable bead Nylon 150 TPI Full Black 250g 11A

Runs on 2 AAA batteries (included) and comes with a tool free mounting bracket

Park Tool Derailleur Hanger Alignment Gauge (DAG-3) size-750ml About Shimano Altus BL-MT200 LeftAbout Park Tool Derailleur Hanger Alignment Gauge (DAG 3)An alignment gauge is essential for diagnosing and repairing bent or misaligned derailleur hangers, often the source of shifting problems. The DAG 3 features an all new design, engineered and built to be light, accurate and versatile. The sliding indicator can measure derailleur hanger alignment against bicycle rims of any size, and rotates out of the way to clear seat stays, racks, and other