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Park DAG-2.2 Derailleur Hanger Alignment Gauge Tool

Park DAG-2.2 Derailleur Hanger Alignment Gauge Tool

Rated 4.9 out of 5 stars
9 Reviews
Sale Clearance Only 1 Left! Ships in 10-14 days Ships from Supplier


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Items in your order marked Ships in 10-14 Days are Special Order items, which means we have to order the item(s) for you from our supplier. Your whole order will be held until all items are in stock and will ship in 10-14 days.

If you are ordering other items which are in stock, you may wish to order those separately so they ship without delay.

Ships from Supplier Notice

This item will ship directly from our supplier in 1-3 business days.


Measure and realign bent hangers with Park's DAG-2.2 hanger tool.

Like all Park Tools, the Derailleur Hanger Alignment Gauge Tool is built to last. Made from heavy-gauge steel, the tool will never wear out! Adjustable to fit 20" to 29"+ wheels, the tool will save countless derailleur hangers. Complementing the durable construction, the threaded tip is replaceable and the tool features tight tolerances for the best accuracy.


  • Gauge bar made of heavy gauge, chrome-plated steel
  • Adjusts to fit 20" to 29"+ wheels
  • Replaceable threaded tip
  • Upgraded large inner shaft for added strength
  • Tighter tolerances for improved accuracy
  • Improved clearance and reach to fit more frame/hanger combos including low clearance thru-axle derailleur hangers
  • Compatible with virtually all derailleur-equipped bicycles including Shimano Direct Mount hangers
  • Length: 16 inches (41cm)

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Product Reviews

Rated 4.9 out of 5 stars
Based on 9 reviews
Total 5 star reviews: 8 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
9 reviews
  • Todd C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    park tool love

    this is a great addition to my toolkit and a must if you run 12spd

  • Brett
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago

    Quality product and easy to use. Great service by the MTB direct team.

  • Michael
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Does what it says on the tin!

    Everyone definitely needs one of these in their tool kit! Majority of your shifting issues can be fixed by simply checking your hanger alignment, and although it may be expensive it's worth the once off purchase. Easy to use as well very intuitive! Thanks for mtb direct for being incredibly fast with the shopping as always!

  • Scott
    I recommend this product
    Rated 5 out of 5 stars
    4 years ago
    Essential to keep your drivetrain running smoothly

    Don't know how I lived without one of these for so long. I was experiencing poor shifting on my bike - skipping gears on certain cogs, noisy on others. It would improve with a new chain but quickly go back to poor. I put the hanger alignment tool on the bike and the hanger was out by miles! 10mins later I had a drivetrain shifting like brand new. The tool is sturdy, well made and easy to use by following the instructions. There is some play in it but it is easy to manage by using it consistently on each side of the wheel. The play in this guage is far less than another brand I've used (X-tools) and thus is worth the extra spend.

  • Tomac
    I recommend this product
    Rated 5 out of 5 stars
    4 years ago
    Now my gears are perfect

    Had a small off attempting a tricky climb and gears were never the same. 5 minutes of using this tool and they were good as new again.

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