Park Tool DAG-2.2
Top Pick
Park Tool

Park Tool DAG-2.2

4.7

Best precision tool for home mechanics fixing shifting issues.

A critical tool for diagnosing and fixing poor shifting performance caused by bent derailleur hangers. It provides a simple, accurate way to align the hanger with the wheel, ensuring smooth gear changes and preventing drivetrain damage.

$93.95

In stock

at

Airpark Bike Co

Component Compatibility Derailleur
Tool Type Derailleur Alignment Gauge
Derailleur Alignment Gauge
Measuring Tool

Who it's for

  • Home mechanics seeking a durable tool that lasts a lifetime
  • Cyclists with a diverse collection of bikes in their garage
  • Performance riders demanding crisp and reliable gear changes

Who should skip it

  • Mobile mechanics or cyclists with limited workshop storage space
  • Novice repairers who prefer simple, plug-and-play maintenance solutions
  • Budget-conscious hobbyists who rarely experience bent derailleur hangers

Performance breakdown

Alignment Precision

The industry standard for achieving perfectly straight derailleur hangers every time.

Excellent

Build Durability

Heavy-duty steel construction withstands years of daily shop abuse.

Excellent

Ease of Use

Intuitive design makes complex drivetrain adjustments accessible for home mechanics.

Excellent

Compatibility Range

Adjustable gauge fits almost any wheel size and hanger configuration.

Excellent

Measurement Consistency

Provides reliable, repeatable readings regardless of the bike frame material.

Excellent

Ergonomic Handling

Solid grip and smooth sliding mechanism ensure comfortable, controlled adjustments.

Excellent

Key Specs

Weight

952.54 grams

Tool Type

Derailleur Alignment Gauge

Intended Use

Drivetrain maintenance and alignment

Component Compatibility

Derailleur Hangers

Know before you buy

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Park Tool DAG-2.2

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Airpark Bike Co
Airpark Bike Co
In stock
$93.95
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