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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.
A bent derailleur hanger can also be the source of drivetrain noise during riding. 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.


Compatability – compatible with road, mountain and youth bicycles with wheels ranging from 20” to 29”.

Especially after positioning the shifting system, the result can be known immediately, and the bracket is retractable and free to adjust the length. Application』 it is used to correct the rear lifting lug and to check the transmission shifting problem simply and accurately.

Compatible: 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.


Most notably with index shifting systems. The tool threads directly into the derailleur hanger. The gauge bar holds a gauge which marks the distance to the wheel.

The gauge then is rotated with the wheel to the 3, 6, and 12 o'clock positions, 9, noting any differences in measurements. Most notably with index shifting systems. Suit for:2 different colors for you to choose, meet your different needs.

1. CycloSpirit
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CycloSpirit Derailleur Hanger Alignment Gauge
#adCycloSpirit #ad - 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. Get rid of ticks, clicks, and clacks from your rear derailleur by adding this EASY TO USE tool to your maintenance routine.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.
More information #ad
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, chattering or jumping a sprocket, not shifting, then you might have a misaligned derailleur hanger. A bent derailleur hanger can also be the source of drivetrain noise during riding. 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.
Brand | CycloSpirit #ad |
Manufacturer | LifeShift #ad |
Height | 3 Inches |
Length | 17 Inches |
Width | 6.5 Inches |
Part Number | DA1 |
Warranty | 2 Years |
More information #ad
2. Park Tool
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Park Tool DAG-2.2 Bicycle Derailleur Hanger Alignment Gauge
#adPark Tool #ad - Compatible with 16" to 29"+ wheels. Replaceable threaded tip. Indispensable tool for both measuring and straightening misaligned derailleur hangers, the cause of many shifting problems.More information #ad
Gauge bar made of heavy gauge, chrome plated steel with upgraded large inner shaft for added strength. Fits most frame/hanger combos including low clearance thru-axle derailleur hangers.Brand | Park Tool #ad |
Manufacturer | Park Tool #ad |
Height | 3 Inches |
Length | 17 Inches |
Weight | 0.09 Pounds |
Width | 6 Inches |
Part Number | DAG-2.2 |
Model | DAG-2.2 |
Warranty | Limited Lifetime Warranty - see Parktool.com/warranty for details |
More information #ad
3. BW
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BW Bicycles Derailleur Hanger Alignment Gauge – Alignment Tool for MTB and Road Bikes Ranging from 20” to 29”
#adBW #ad - If for any reason you wish to discontinue using the product, we will promptly issue a refund. Solves shifting problems – designed to check and re-align rear derailleur hangers which are very often the cause of poor shifting.Compatability – compatible with road, mountain and youth bicycles with wheels ranging from 20” to 29”.
More information #ad
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. Easy to use – simple and easy to use design. Quality construction – well-built shop quality tool made for years of use.Brand | BW #ad |
Manufacturer | BW #ad |
Part Number | BW1059 |
More information #ad
4. Coherny
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Coherny Professional Bicycles Hanger Alignment Gauge Alignment Ranging Tool for MTB and Road Bikes
#adCoherny #ad - Save space 』after shrinking, the length is only 9 inches, which takes up very little space and is very convenient to carry. Fit 』it adjusts to fit 26 / 27. 5 / 29 / 700c wheels.Especially after positioning the shifting system, the result can be known immediately, and the bracket is retractable and free to adjust the length. Application』 it is used to correct the rear lifting lug and to check the transmission shifting problem simply and accurately.
More information #ad
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.Brand | Coherny #ad |
Manufacturer | Coherny #ad |
Part Number | 1 |
More information #ad
5. SWTXO
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SWTXO Derailleur Hanger Alignment Gauge Tool
#adSWTXO #ad - Retractable bracket: The bracket is retractable and free to adjust the length. 360° rotation: the 360° rotation design for more convenient to use. Fit: the derailleur hanger alignment tool is meant for bike shops as well for home mechanics that needs fixing or maintaining precise gear shifting.Compatible: 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.
More information #ad
Material: derailleur hanger alignment tool is made of 304 stainless steel material for high temperature resistant in 800 °C to maintain the inherent corrosion resistance of stainless steel. Measuring rod is easy to move freely, the guide rod can move automatically and can be taken out.Brand | SWTXO #ad |
Manufacturer | SWTXO #ad |
Part Number | Derailleur Hanger Alignment Tool 086 |
More information #ad
6. Wolf Tooth Components
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12mm TA and 5mm QR, Wolf Tooth Components Hanger Alignment Tool One Color
#adWolf Tooth Components #ad - Compatibility: 12mm thru axle, 12mm thru-axle and 5mm Quick-Release. Manufacturer Warranty: 1 year limited. Recommended Use: bike maintenance.More information #ad
Brand | Wolf Tooth Components #ad |
Manufacturer | Wolf Tooth Components #ad |
Height | 3 Inches |
Length | 17 Inches |
Weight | 0.75 Pounds |
Width | 5 Inches |
Part Number | HAT-TAQR-KIT |
Model | Wolf Tooth Components |
More information #ad
7. NATRUSS
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Derailleur Hanger Alignment Gauge, NATRUSS Bike Hanger Alignment Tool, Telescopic for Outdoor Mountain Bicycle Bike Road BikeBlack
#adNATRUSS #ad - Adopting quality structure and telescopic measurement, more convenient and quick, lightweight and compact size. The alignment of the derailleur hanger is accomplished by applying pressure to the tool's arm.Most notably with index shifting systems. The tool threads directly into the derailleur hanger. The gauge bar holds a gauge which marks the distance to the wheel.
More information #ad
The results can be checked instantly. 2 different colors for you to choose, meet your different needs. The gauge then is rotated with the wheel to the 3, 6, 9, and 12 o'clock positions, noting any differences in measurements. Indispensable tool, can be used to both measure and straighten misaligned derailleur hangers solving a high percentage of shifting problems.Brand | NATRUSS #ad |
Manufacturer | NATRUSS #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 1.03 Pounds |
Width | 0 Inches |
Part Number | NATRUSSw78hbvu1i2-01 |
More information #ad
8. Vbest life
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Vbest life Bicycles Derailleur Hanger Alignment Gauge,Bike Tail Hook Calibration Tools for Mountain BicycleBlack
#adVbest life #ad - The gauge bar holds a gauge which marks the distance to the wheel. Easy to use:the tool threads directly into the derailleur hanger. How to work:the alignment of the derailleur hanger is accomplished by applying pressure to the tool's arm.The gauge then is rotated with the wheel to the 3, 6, and 12 o'clock positions, 9, noting any differences in measurements. Most notably with index shifting systems. Suit for:2 different colors for you to choose, meet your different needs.
More information #ad
Suitable range: 26/27. 5/29/700c. The results can be checked instantly. Convenient and quick:Adopting quality structure and telescopic measurement, more convenient and quick, lightweight and compact size. Function:indispensable tool, can be used to both measure and straighten misaligned derailleur hangers solving a high percentage of shifting problems.Brand | Vbest life #ad |
Manufacturer | Vbest life #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 1.04 Pounds |
Width | 0 Inches |
Part Number | Vbest life8raq0tgdxu-11 |
More information #ad
9. BIKE HAND
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BIKEHAND Bike Bicycle Frame Rear Dropout Derailleur Hanger Alignment Gauge Tool
#adBIKE HAND #ad - Length: 460mm, weight: 876g = 1. 931lbs. Fit all wheels: a longer, narrower alignment fit a wider variety of bikes. Easy to read. Compatible with 20" to 29"+, 700c wheels. This precisely machined tool will solve multitude of derailleur shifting problems, most especially with index shifting systems.More information #ad
Solving shifting problems: a misaligned bike rear hanger will result in bad shifting performance. Better grip: Rubber handle for better using experience. Quality gauge bar: gauge bar made of heavy gauge, chrome plated steel.Brand | BIKE HAND #ad |
Manufacturer | BIKE HAND #ad |
Height | 1.97 Inches |
Length | 18.9 Inches |
Weight | 2.2 Pounds |
Width | 5.12 Inches |
Part Number | YC-508 |
More information #ad