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Repair Help: Cranks and Pedals
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Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge
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Universal Cycles -- Tools & Maintenance
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Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge
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Repair Help Articles
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 from 16-29, and rotates out of the way to clear seat stays, racks, and other obstacles, allowing 360 degree measurement.
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Park Tool DAG-3 - Derailleur Hanger Alignment Gauge
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Park Tool Unisex – Erwachsene MWF Bremswerkzeug, Silber
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SDS-2 Service Department Sign — Double-Sided
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Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge
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 from 16-29, and rotates out of the way to clear seat stays, racks, and other obstacles, allowing 360 degree measurement.
![](https://www.parktool.com/assets/img/product/_productDetail/DAG-3_010.jpg)
Park Tool DAG-3 - Derailleur Hanger Alignment Gauge
A precision cross tip component screwdriver machined to exact standards to ensure a perfect fit on compatible component fasteners.
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Derailleur Screwdriver
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You're Using Our Tools Wrong
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 from 16-29, and rotates out of the way to clear seat stays, racks, and other obstacles, allowing 360 degree measurement.
![](https://www.parktool.com/assets/img/product/_productDetail/DAG-3_011.jpg)
Park Tool DAG-3 - Derailleur Hanger Alignment Gauge