Park Tool Chain Wear Indicator

by Park Tool

Product Features

• This tool quickly checks chain stretch and wear it will determine if a chain is good or bad
• Made from precision, laser cut steel
• Fits derailleur and one speed chains including 9 and 10 speed

Product Description

A worn chain shifts poorly and wears sprockets at an accelerated rate. The CC-3.2 is a go-no go gauge designed to accurately indicate when a chain reaches .5% and .75%, the points at which most chain manufacturers suggest replacement. The updated CC-3.2 is longer, more accurate and features permanent measurement markings.

Product Details

• Product Dimensions: 0.4 x 3.5 x 8.7 inches ; 1.6 ounces
• Shipping Weight: 2.1 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000OZFIMQ
• Item model number: CC-3C/25
• Average Customer Review: 4.8 out of 5 stars  See all reviews (22 customer reviews)
• Amazon Best Sellers Rank: #4,226 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • #42 in Sports & Outdoors > Bikes & Accessories > Bike Tools & Equipment

Customer Reviews

Most Helpful Customer Reviews

12 of 12 people found the following review helpful:

5.0 out of 5 stars Quick, Cheap, Effective, May 3, 2011

By 

ChicagoCPA (Chicago) - See all my reviews
(TOP 1000 REVIEWER)   

Amazon Verified Purchase

This review is from: Park Tool Chain Wear Indicator (Sports)

Until recently I was blissfully unaware of chain stretch. My chainring and freewheel and chain all "grew up" together. All seemed okay until I finally got a bike tune up and I learned that one cannot just install a new chain in this case because the stretched chain has eaten thru the chainring and freewheel so much that a new chain simply will no longer fit (in retrospect, it makes sense, but at the time I just just annoyed that they refused to replace the chain without replacing chainring and freewheel as well, saying the slippage would make it nearly unrideable. I did convince them to NOT replace the freewheel and sure enough, the slippage was extremely annoying).

So now I have one of these and when the stretch exceeds 1%, I will just buy a new chain, rather than having to deal with replacing the freewheel and chainring as well.

14 of 15 people found the following review helpful:

5.0 out of 5 stars Removes the guesswork, March 2, 2008

By 

Philip J. Bohlken (Caldwell, Idaho) - See all my reviews
(REAL NAME)   

Yes, you can measure chain wear by holding a rule to the chain and measuring the length between pins over 12 inches. But, you need a hand to make the chain taut and a hand to hold the rule at the first pin and another hand to hold the rule at the pin twelve inches along. This tool does a good job and you can use one hand only. It is well worth what it costs.

9 of 9 people found the following review helpful:

4.0 out of 5 stars It works, November 15, 2010

By 

Andrew W. Cameron "Andy Cameron" (Pensacola, Florida) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Park Tool Chain Wear Indicator (Sports)

Hi folks,

This is a "go or no go" gage either it fits into the chain which means the chain on your
bike needs replacement, or the gage does not fit into the chain which means the chain is
still good. So your asking does it do the job--YEP works fine!!!