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.
Buy Park Tool Chain Wear Indicators from Chain Reaction Cycles, the World’s Largest Online Bike Store.
Rated 5 out of 5 by Ricker Great product, keeps your mind at peace
Its more of a peace of mind tool. Although the price is high for such a device, it does do its job well, is marked well, and helps you feel at peace knowing your chain is or isn't worn out.
06 March 2014
Rated 4 out of 5 by Zoslen Good enough
Robust enough and counts 0.5 and 0.75, while other chain wear indicators count 0.75 and 1.
27 February 2014
Rated 5 out of 5 by PaulShouldknowbetter Will save you pounds
Its only a flat piece of pressed steel, but it will pay for itself many times over. It even has a second use - as it is excellent at pushing worn out brake blocks from the holder while on the bike ( the little c part fits the radius on the back end of the pad perfectly).
Change the chain between .5% and .75% wear and you can prolong the life of the cassette by being able to use at least 2 chains to one cassette. If you let the chain wear much beyond .75% you will have to replace the cassette every time.
21 January 2014
Rated 5 out of 5 by lbalc You need this tool!
If you don't have this tool you will not know when your chain has worn out, meaning; you have to buy a new cassette, a new chain and in my case a large chain ring (as that is the one I use the most on the front). Had you spent under a £10 for this tool, you could just change your chain (£15) and got 2-3 chains out of the cassette and probably 4-5 out of the chain rings. Otherwise it's spend more like £70 in new parts.
05 January 2014
Rated 5 out of 5 by RobbyD simple and effective
A very simple tool that is a good addition to the tool kit.
Takes the guess work out of changing a worn chain before it causes damage to other components
Should help save money in the long run.
18 December 2013
Rated 4 out of 5 by Anonymous Does what its supposed to
I was about to replace my chain as I had a feeling it was getting near replacement time but this told me very quickly that it still had some life in it, this accuracy should help recoup the cost of the tool. Its an extremely well-built piece of metal, not much else to say... would be 5 stars if it was a couple of quid cheaper.
01 January 2013
Rated 5 out of 5 by Anonymous Great Tool
Cheap, strong, efficient, easy to use - what more do you want in a tool? Buy this and save your self costly guide ring and cassette replacements that wear out due to an over used chain.
28 September 2012
Rated 5 out of 5 by Anonymous Easy to use
Every rider should have this - so easy to use and should last a lifetime. I seen some comments questioning whether this is "value for money" - it is, because as soon as it tells you to change your chain you have saved money on cassettes/guide rings later on down the road.
12 July 2012