Sluggish gear shifting on a bicycle can be the result of several problems. However, there’s one common issue that you might have trouble diagnosing without the proper tool: a bent derailleur hanger.

we’ve put together a collection of the best Derailleur Hanger Alignment Gauges that are currently available on the market. To help you find the perfect Derailleur Hanger Alignment Gauge among a wide variety of options, we constantly update our collection with new and trending models.

10 Best Derailleur Hanger Alignment Gauges

Based on dozens of customer reviews and ratings, the followings are the top 10 best-selling Derailleur Hanger Alignment Gauges:

# Preview Product Price
1 Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge $83.95 View Product
2 CycloSpirit Derailleur Hanger Alignment Gauge CycloSpirit Derailleur Hanger Alignment Gauge $53.95 View Product
3 Derailleur Hanger Alignment Gauge Bike Tail Hook Calibration Tools for Mountain Bicycle MTB and Road Bikes Ranging from 20” to 29” Silver Derailleur Hanger Alignment Gauge Bike Tail Hook Calibration Tools for Mountain Bicycle MTB and Road… $45.96 View Product
4 BW Bicycles Derailleur Hanger Alignment Gauge – Alignment Tool for MTB and Road Bikes Ranging from 20” to 29” BW Bicycles Derailleur Hanger Alignment Gauge – Alignment Tool for MTB and Road Bikes Ranging from… $54.99 View Product
5 Coherny Professional Bicycles Hanger Alignment Gauge Alignment Ranging Tool for MTB and Road Bikes Coherny Professional Bicycles Hanger Alignment Gauge Alignment Ranging Tool for MTB and Road Bikes $38.92 View Product
6 Eddyfly Bicycle Tool Derailleur Hanger Alignment Gauge Bike Frame Fork Tools (Silver) Eddyfly Bicycle Tool Derailleur Hanger Alignment Gauge Bike Frame Fork Tools (Silver) $49.80 View Product
7 SYCOOVEN Bicycle Derailleur Hanger Alignment Gauge Ranging Tool Portable for MTB and Road Bike Repair SYCOOVEN Bicycle Derailleur Hanger Alignment Gauge Ranging Tool Portable for MTB and Road Bike… $32.99 View Product
8 RYANSANS Derailleur Hanger Alignment Gauge Compatible with 20' to 29'+ Wheels (HAG1.0) RYANSANS Derailleur Hanger Alignment Gauge Compatible with 20″ to 29″+ Wheels (HAG1.0) $46.99 View Product
9 BIKEHAND Bike Bicycle Frame Rear Dropout Derailleur Hanger Alignment Gauge Tool BIKEHAND Bike Bicycle Frame Rear Dropout Derailleur Hanger Alignment Gauge Tool $64.98 View Product
10 YUE Bicycle Derailleur Hanger Alignment Gauge Tool Professional Corrector Tool YUE Bicycle Derailleur Hanger Alignment Gauge Tool Professional Corrector Tool $45.09 View Product

Top Rated Derailleur Hanger Alignment Gauge Reviews

Since we’ve mentioned 10 different models of Derailleur Hanger Alignment Gauges on the above list, it may be difficult for you to find the right one for your needs. This is why we listed the key features of each of these Derailleur Hanger Alignment Gauges below:

1

Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge
Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge

$83.95
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Product Highlights:

  • Improved clearance and reach to work on more frame/derailleur hanger combos, including low clearance thru axle derailleur hangers
  • Updated with tighter tolerances for improved accuracy
  • Adjusts to fit 20″ to 29″+ wheels
  • Upgraded, large inner shaft for added strength
  • Replaceable 10mm x 1 threaded tip
2

CycloSpirit Derailleur Hanger Alignment Gauge
CycloSpirit Derailleur Hanger Alignment Gauge

$53.95
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Product Highlights:

  • 🚴 Get rid of ticks, clicks, and clacks from your rear derailleur by adding this EASY TO USE tool to your maintenance routine. All the noise coming from your drivetrain can be significantly reduced in few easy steps.
  • 🚴 🚴 If your rear derailleur is giving you a hard time, not shifting, chattering or jumping a sprocket, then you might have a misaligned derailleur hanger. A bent derailleur hanger can also be the source of drivetrain noise during riding.
  • 🚴 Made of heavy gauge, the derailleur hanger alignment tool is meant for bike shops as well for home mechanics that needs fixing or maintaining PRECISE GEAR SHIFTING.
  • 🚴 🚴 Compatible with 20” to 29”+ wheels, this tool has enough clearance to help you move around the wheel when you are making the necessary corrections on all your bikes.
  • 🚴 🚴 🚴 Includes the USER MANUAL with complete step by step instructions so you can be sure you’re on the right track to smooth gear changing.
3

Derailleur Hanger Alignment Gauge Bike Tail Hook Calibration Tools for Mountain Bicycle MTB and Road Bikes Ranging from 20” to 29” Silver
Derailleur Hanger Alignment Gauge Bike Tail Hook Calibration Tools for Mountain Bicycle MTB and Road Bikes Ranging from 20” to 29” Silver

$45.96
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Product Highlights:

  • Fitment: compatible with road, mountain and youth bicycles with wheels ranging from 20” to 29”.
  • Well-Designed:The positioning strip of the Stainless Steel Bicycle Alignment Gauge has a scale, which is adjustable and easy to use.
  • Function: Made of heavy-duty measuring devices, suitable for bicycle repair shops and home mechanics who need to fix or maintain precision gear shifts. The tool has enough clearance to help you move on the wheels while making the necessary corrections for all bicycles.
  • Package include:1x Derailleur Hanger Alignment Gauge
  • Service:Slother aim to providing you with better products and services. You can contact us first for any problem or concern, your problem will be figured out with our support.
4

BW Bicycles Derailleur Hanger Alignment Gauge – Alignment Tool for MTB and Road Bikes Ranging from 20” to 29”
BW Bicycles Derailleur Hanger Alignment Gauge – Alignment Tool for MTB and Road Bikes Ranging from 20” to 29”

$54.99
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Product Highlights:

  • 90 DAY MONEY-BACK GUARANTEE – We are so sure you’ll be happy with your purchase that we offer a 90-Day Money-Back Guarantee to ensure customer satisfaction of our products. If for any reason you wish to discontinue using the product, we will promptly issue a refund.
  • COMPATABILITY – Compatible with road, mountain and youth bicycles with wheels ranging from 20” to 29”
  • EASY TO USE – Simple and easy to use design
  • SOLVES SHIFTING PROBLEMS – Designed to check and re-align rear derailleur hangers which are very often the cause of poor shifting
  • QUALITY CONSTRUCTION – Well-built shop quality tool made for years of use
5

Coherny Professional Bicycles Hanger Alignment Gauge Alignment Ranging Tool for MTB and Road Bikes
Coherny Professional Bicycles Hanger Alignment Gauge Alignment Ranging Tool for MTB and Road Bikes

$38.92
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Product Highlights:

  • ❤『Application』 It is used to correct the rear lifting lug and to check the transmission shifting problem simply and accurately. Especially after positioning the shifting system, the result can be known immediately, and the bracket is retractable and free to adjust the length.
  • ❤『 Fit 』It Adjusts to fit 26 / 27.5 / 29 / 700C wheels.
  • ❤『 Durable Material 』The main body is made of 304 stainless steel and features a high temperature resistance of 800 °.Strong and durable, not easy to damage in the process of use
  • ❤『More precise 』Improved clearance and reach to work on more frame/derailleur hanger combos, including low clearance thru axle derailleur hangers.Updated with tighter tolerances for improved accuracy.
  • ❤ 『 Save space 』After shrinking, the length is only 9 inches, which takes up very little space and is very convenient to carry.
6

Eddyfly Bicycle Tool Derailleur Hanger Alignment Gauge Bike Frame Fork Tools (Silver)
Eddyfly Bicycle Tool Derailleur Hanger Alignment Gauge Bike Frame Fork Tools (Silver)

$49.80
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Product Highlights:

  • Designed to measure and straighten misaligned derailleur hangers.
  • Simple and accurate to check the alignment of rear derailleur hanger and solve most derailleur shifting problems, especially those with index shifting systems.
  • Fits to most wheels, 20~29″.
7

SYCOOVEN Bicycle Derailleur Hanger Alignment Gauge Ranging Tool Portable for MTB and Road Bike Repair
SYCOOVEN Bicycle Derailleur Hanger Alignment Gauge Ranging Tool Portable for MTB and Road Bike Repair

$32.99
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Product Highlights:

  • ✔✔Durable Material: The bike ranging tool is made of Aluminum Alloy, Stainless Steel and features a high temperature resistance. Strong and durable, lightweight.
  • ✔✔Application: The bicycle derailleur hanger alignment gauge is used to correct the rear lifting lug and to check the transmission shifting problem simply and accurately. Especially after positioning the shifting system, the result can be known immediately.
  • ✔✔Design: The bicycle alignment tool can 360 degree rotation, telescopic measurement, free to adjust the length, more convenient and quick.
  • ✔✔More Accurate: Improved clearance and reach to work on more frame/derailleur hanger combos.Including low clearance thru axle derailleur hangers. Updated with tighter tolerances for improved accuracy.
  • ✔✔Fit: It Adjusts to fit 26/27.5/29/700C wheels. Suitable for most of bicycles.
8

RYANSANS Derailleur Hanger Alignment Gauge Compatible with 20' to 29'+ Wheels (HAG1.0)
RYANSANS Derailleur Hanger Alignment Gauge Compatible with 20″ to 29″+ Wheels (HAG1.0)

$46.99
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Product Highlights:

  • ✅Compatibility – The derailleur hanger alignment gauge compatible with everyday bikes, road bikes and MTB with wheels ranging from 20″ to 29″+.
  • ✅Function – Correct the derailleur hanger by measuring the relationship between the derailleur hanger and any point on the rim, and solve the problems of inconsistent shifting and drivetrain noise.
  • ✅Features – Replaceable M10 threaded tip, made of heavy gauge chrome, simple and easy to use design can be used for many years.
  • ✅Package – 1 x Derailleur Hanger Alignment Gauge, 1 x User Manual. You can perform standardized operations according to the steps in the manual to avoid improper operations.
  • ✅Buy With Confidence – If you are not satisfied with the product, please contact us by e-mail and we will solve the problem immediately. Buying RYANSANS products will enjoy a one-year warranty and customer service, you can buy products with peace of mind.
9

BIKEHAND Bike Bicycle Frame Rear Dropout Derailleur Hanger Alignment Gauge Tool
BIKEHAND Bike Bicycle Frame Rear Dropout Derailleur Hanger Alignment Gauge Tool

$64.98
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Product Highlights:

  • SOLVING SHIFTING PROBLEMS: A misaligned bike rear hanger will result in bad shifting performance. This precisely machined tool will solve multitude of derailleur shifting problems, most especially with index shifting systems.
  • QUALITY GAUGE BAR: Gauge bar made of heavy gauge, chrome plated steel. Easy to read.
  • FIT ALL WHEELS: A longer, narrower alignment fit a wider variety of bikes. Compatible with 20″ to 29″+ , 700c wheels
  • BETTER GRIP: Rubber handle for better using experience
  • Length: 460mm, Weight: 876g = 1.931lbs
10

YUE Bicycle Derailleur Hanger Alignment Gauge Tool Professional Corrector Tool
YUE Bicycle Derailleur Hanger Alignment Gauge Tool Professional Corrector Tool

$45.09
View Product
Product Highlights:

  • 100% brand new and high quality
  • Product can be used to measure and straighten misaligned derailleur hangers for most shifting problems
  • Stem is made of heavy duty chrome steel for corrosion resistance of stainless steel
  • Mountain Bike Derailleur Lift Ear Calibration Correction Tool
  • Reminder: Due to different manual measurements, please allow slight size differences (1-3cm).

Video Overview

How to Align a Derailleur Hanger Using the DAG-2.2

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A misaligned derailleur hanger is an often-overlooked cause of poor shifting performance. We’ll show you how to diagnose and repair your hanger using the …

Final Words

So, these are all of the Best Derailleur Hanger Alignment Gauges available on the market. We hope this collection was helpful to find the right Derailleur Hanger Alignment Gauge for the money. However, we recommend checking out the features, benefits, and problems of each of these Derailleur Hanger Alignment Gauges before taking your decision.