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  • Park Tool DAG-3 Derailleur Hanger Alignment Gauge
Park Tool DAG-3 Derailleur Hanger Alignment Gauge
Park Tool DAG-3 Derailleur Hanger Alignment Gauge
Park Tool DAG-3 Derailleur Hanger Alignment Gauge
Park Tool DAG-3 Derailleur Hanger Alignment Gauge
Park Tool DAG-3 Derailleur Hanger Alignment Gauge
Park Tool DAG-3 Derailleur Hanger Alignment Gauge

Park Tool DAG-3 Derailleur Hanger Alignment Gauge

Model 5270276

Comp. Value

Our “Comparable Value” (Comp. Value) prices are based on the prices charged by Trek or other retailers, in-store or online, for the same or similar items. In most cases, this is a price at which Trek has offered the item for sale, and also the MSRP we provide to third-party resellers based on the prices of competing items in the market.

$219.99 Comp. Value Sale price

A lightweight, accurate alignment gauge for diagnosing and repairing bent or misaligned derailleur hangers.

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  • Note: We do not offer delivery to PO boxes, hotels, and freight forwarding addresses. Bikes cannot be delivered to FPO/APO addresses due to size restrictions on deliveries.
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Pricing details

Retailer price

Retailer pricing applies when you purchase goods online that the shop has in stock today. Order is subject to retailer acceptance.

Comp. Value

Our “Comparable Value” (Comp. Value) prices are based on the prices charged by Trek or other retailers, in-store or online, for the same or similar items. In most cases, this is a price at which Trek has offered the item for sale, and also the MSRP we provide to third-party resellers based on the prices of competing items in the market.

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The DAG-3 Derailleur Hanger Alignment Gauge is light, accurate and versatile. The long, precision-extruded aluminum body is built to exacting tolerances and provides ample leverage for adjustments.

The sliding indicator measures derailleur hanger alignment against bicycle rims of any size, and rotates out of the way to clear seat stays, racks, and other obstacles for 360 degree measurement.

Product details

  1. Compatible with 16" to 29"+ wheels (ISO/ETRTO rim sizes from 317 to 630+)
  2. Low-profile head fits low clearance thru-axle derailleur hangers and Shimano® Direct Mount hangers
  3. Replaceable M10 threaded tip
  4. Length: 16.5" (420mm)
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DAG-3 Derailleur Hanger Alignment Gauge product overview

The DAG-3 Derailleur Hanger Alignment Gauge is light, accurate and versatile. The long, precision-extruded aluminum body is built to exacting tolerances and provides ample leverage for adjustments.

Watch video

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