Park Tool DAG-2.2 professional derailleur hanger alignment tool

(23 reviews)

Essential!

EAN : 0763477002624 | Ref : 1440500

€101.49

Price : €124.95

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Based on 23 reviews

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Park Tool DAG-2.2 professional derailleur hanger alignment tool

More details In stock

Park Tool DAG-2.2 professional derailleur hanger alignment tool

€101.49

Also available in store

Our opinion

David G.

Former professional team mechanic

Park Tool reference: DAG-2.2

New 2017 model compatible with all frames on the market

This tool is essential for mounting a road or mountain bike rear derailleur. It allows you to perfectly align the derailleur hanger with the frame. This operation is mandatory for a new frame and/or in the event of a fall. Without it, it is impossible to operate a derailleur correctly. It is often the solution for unwanted chain noise or impossible adjustments... Before touching anything on your bike, the first step in adjusting a derailleur is to check its alignment with the frame. This will save you time!

Essential for aligning a new derailleur hanger.

Essential for resolving poor gear shifting.

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10/10

Based on 23 reviews

Yvan E.
Published Feb 01, 2026 at 05:58 pm (Order date: Jan 21, 2026)

5

Good tool (Translated review)
David M.
Published Dec 22, 2025 at 06:28 am (Order date: Dec 11, 2025)

5

A longer lever arm would have been ideal (Translated review)
Antoine L.
Published Nov 15, 2024 at 06:53 pm

5

It helped me realign everything, I discovered this tool and I'm happy with it (Translated review)
Jacques B.
Published Nov 08, 2024 at 08:53 am

5

Easy to use, essential for aligning the rear derailleur after the slightest shock, as soon as the noise of misalignment is heard. And with electric and 11/12 speed, making adjustments requires great precision. (Translated review)
Daniel P.
Published Oct 26, 2024 at 05:10 pm

5

A tool that should have a good place among a cyclist's equipment. Easy to use, effective if you follow the instructions well. To recommend. (Translated review)
Marc B.
Published Aug 15, 2023 at 11:41 am

5

Essential for perfectly adjusting your transmission and with an adapter, it can also serve as a tool for checking the height of road hoods. The best value for this type of tool. (Translated review)
Vincent B.
Published Mar 01, 2023 at 10:06 am

5

Very good tool for checking the alignment of the derailleur hanger and straightening it if necessary. Easy to use. (Translated review)
Stéphane C.
Published Jul 04, 2022 at 12:36 pm

5

Essential, especially with children!! Easy to use (Translated review)
Pedro H.
Published Feb 15, 2022 at 01:05 am

5

Very well-built tool and helps a lot to keep the derailleur hanger straight. (Translated review)
Jean Pierre L.
Published Nov 17, 2020 at 08:40 pm

5

Essential tool for proper positioning and use of the rear derailleur, and also very easy to use. Just ordered, already delivered. Super thanks to Matériel vélo (Translated review)