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Park Tool DAG-1 Derailleur Alignment Gauge Tools

5/5 (4 Reviews)

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MSRP : $49.99


Product Description



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Reviews 1 - 4 (4 Reviews Total)

User Reviews

Overall Rating:5
Value Rating:5
Submitted by strglide a Cross Country Rider from Long Island, NY

Date Reviewed: March 21, 2009

Strengths:    Allows you to check and realign the derailleur hanger easily and accurately. Well made product, typical of Park Tools.

Weaknesses:    Not having this tool is a weakness. The tool has none and works as intended.

Bottom Line:   
Derailleur hangers are a small part subject to a big job. It is very easy to knock them out of alignment. You may not notice a change in shifting performance at first, and usually they can be adjusted to work fine.
BUT, if you use this tool to check and realign your derailleur hanger properly, shifting will be like when the bike was new, or even better as many bikes may not have the derailleur hanger aligned properly when new. Most LBS will do this service for about 1/2 the cost of the tool, so by the time you use it twice, it pays for itself.
This tool is one of the best additions to my bicycle toolbox.

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Duration Product Used:   Less than 1 month

Price Paid:    $55.00

Purchased At:   BuildYourBike Store

Similar Products Used:   None

Bike Setup:   Specialized Epic
Overall Rating:5
Value Rating:5
Submitted by Khoa a Cross Country Rider from Sacramento, CA

Date Reviewed: September 28, 2007

Strengths:    It works.

Weaknesses:    None

Bottom Line:   
If you ride enough, you will eventually hit your rear derailleur on a boulder or crash your bike just right to bend your derailleur hanger. When that happens, you will need this tool to get your rear shifting back to perfect working order. No guess work. No need to buy a new derailleur hanger. This is one of the most valued tools in my kit.

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Favorite Trail:   Porcupine Rim, Moab

Duration Product Used:   More than 3 years

Price Paid:    $57.00

Purchased At:   Pricepoint

Similar Products Used:   Crescent wrench

Bike Setup:   Santa Cruz Nomad
Overall Rating:5
Value Rating:5
Submitted by James Davis a Cross Country Rider from Fort Lauderdale FL

Date Reviewed: October 13, 2004

Strengths:    It just works and you don't need to be an expert to fix your shifting problems.

Weaknesses:    None

Bottom Line:   
If your shifting is sloppy or your missing shifts all together use this tool to keep things in line. If I could give it 10 flames I would.

Expand full review >>

Favorite Trail:   all

Duration Product Used:   1 Year

Price Paid:    $45.00

Purchased At:   Jenson

Similar Products Used:   Screw Driver

Bike Setup:   Trek Liquid with XTR Group and Mavic Wheels
Overall Rating:5
Value Rating:4
Submitted by Julie Brumbaugh from Carnation Wa

Date Reviewed: March 21, 2003

Strengths:    works perfectly and easy to use-its a park!!

Weaknesses:    just a tad bit expensive

Bottom Line:   
Hmmm my bike would not shift into the small cog and shifting performance was not good not crisp and smooth as it should be. When we used this tool we found out my derailleur was so out of line from crashing and thats why it wouldent shift correctly. Boy what a big difference it made!! You should buy this tool if you ever crash or your bike just isn't shifting like it used to and your neighbors and friends will like it too.

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Favorite Trail:   twisty windy long ones

Duration Product Used:   3 months

Price Paid:    $40.00

Purchased At:   e-bay

Similar Products Used:   wrench

Bike Setup:   Marin Pine Mtn.
Reviews 1 - 4 (4 Reviews Total)

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