Park ToolCC-3.2 Chain Wear Indicator(Return to Product Page)

Every cyclist needs to know when their chain needs replacing. This tool is an inexpensive tool to have in your box. There are other more costly tools, but I don't know why you would use them when this is more cost effective.

At roughly 1,700 miles I had a chain snap while taking off from a stop. When the chain snapped it broke my front Di2 derailleur and luckily I didn't go down in the process or get hit by oncoming traffic. Do yourself a favor and check your chain when your miles start adding up...

Park Tools always work and I have not had any problems, plus it is small enough to travel with. Gono-go tools are the best. You don't need to worry about moving parts or calibration issues.

Bought not know Ming my chain wear. Found out that I needed a new chain, promptly changed the chain. Helped reduce the noise of my drivetrain

A great away to check chain wear very quickly with no confusion.

Easy to use. Eliminates guessing.

nice to have the tool in my toolbox, use it and it works, simple peace of mind

I use it to check chain wear. I used to just measure between the rivets to check wear. This tool tells it like it is.

Nothing to dislike about it at all.