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Best Sellers | | Home Park CC-2 Chain Checker Bike Tool | |
|  | |  | | | Park CC-2 Chain Checker Bike Tool | | | | | SKU:
TP260 | | In Stock | | Availability:
Usually ships in 1-2 business days | | | | | | Park chain checker tool. Provides a quick and easy method for determining if a chain is worn or stretched. | | | |
List Price:
| $29.62 | |
Our Price:
| $19.95 | |
You Save:
| $9.67 (33%)
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| | Product Details | | Product Length: | 0.79 inches | | Product Width: | 4.72 inches | | Product Height: | 1.97 inches | | Product Weight: | 0.18 pounds | | Package Length: | 8.66 inches | | Package Width: | 5.2 inches | | Package Height: | 1.34 inches | | Package Weight: | 1.1 pounds | | Average Customer Rating: |  based on 5 reviews |
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| | Customer Reviews | Average Customer Review: ( 5 customer reviews )
Write an online review and share your thoughts with other customers.
Most Helpful Customer Reviews
18 of 18 found the following review helpful:
Simple, accurate, durable Sep 01, 2009
By T. Campbell
This tool measures chain-wear and it's very simple to use. The bottom of the tool has two metal pins, one pin is mounted to a lever and is offset in a way that changes the spacing between the pins when the lever is moved. This allows you to very precisely measure how much a bicycle chain has stretched. The stretch amount is visible through a small window.
The tool is machined out of solid aluminum and the color is anodized (not painted). There are no plastic or fragile parts. The tool will never wear out -- one is all you'll need for the rest of your bike-riding life.
Chains have a sequence of narrow & wide links. Each narrow & wide pair of links on a new chain will measure exactly 1.0" from center of pin to center of pin. If you were to use a ruler to measure 20 links (10 "pairs") it should measure exactly 10.0" on a brand-new chain. The chain will stretch with use as the hinge points wear. 1/16th of an inch is normal -- at 1/8" it's time to replace the chain. But using the Park Tool is a easier and faster than using a ruler.
Set the lever to the "0" position and set the tool on your chain (keep mild tension on the chain to get an accurate reading -- measuring a chain hanging slack will not be accurate) so that the pins on the tool are between the links on your chain. Push the lever until it stops then read the stretch value through the window on the tool. A brand new chain will measure .0 -- any used chain will have some stretch. Values below .5 are considered normal/acceptable amounts of wear (the tool reads from 0 to 1.0 in .25 increments.), but above .5 means your chain will need replacing soon. I replace my chains when they read .75.
Why do you care?
Chains are relatively inexpensive and easy to replace, but if they're not replaced they can create problems. The chain will begin to slip and jump -- usually under heavy load such as trying to ride up a steep hill or on an aggressive climb on a trail (which is exactly when you _don't_ want that to happen). A stretched chain will also wear the sprockets -- it'll mildly affect the front chainrings, but it can more rapidly affect the rear freewheel or cassette and these are more expensive to replace.
If you ride aggressively on trails you should be checking your chain about every 100-200 miles of riding. If you ride more gently or only on mostly flat streets then you may only need to check every 300-500 miles.
I give this tool 5 stars (and I'm not one to just give out five stars because I bought one myself) because it's simple to use, it's easy to read, it's accurate, and it's constructed of durable materials -- not cheap plastic parts -- down to every detail (including anodizing the aluminum instead of painting it -- so there's not even any paint to wear off.) They did everything right when they made this tool. I couldn't ask for anything more.
5 of 5 found the following review helpful:
 Decent tool for measuring chain wear. Sep 22, 2010
By G. Powell
I bought this tool vs the plain Park Tool Chain Wear Indicator which my shop used. The simpler tool is just a worn/not worn thing. This tool also tells you how much farther you have to go. That makes it easier for me to judge when to get around to measuring again.
I've used it for a couple of months and while I'm glad I bought it. However if I were to replace it, I'd probably just opt for the more basic version. There is some variation as you insert it in your chain, but generally it's very simple to use. Put it in place, push the lever until the pins seat, then read the dial. My chains always seem to need replacing by the time I remember to measure them.
As has been mentioned measuring and replacing chains early saves your cogs. I seem to get about 3 chains per cog set (10 cogs). And also a decent dry lube seems to help keep the grit off the chain and make it last longer. I'd recommend something like White Lightning Clean Ride Lube and apply it often once the original manufacturing lube wears off. Seems to keep the grit off the chain.
5 of 5 found the following review helpful:
Essential tool; eliminates doubt on when your chain is worn Sep 16, 2008
By Steve Frazier
There are several ways to measure whether it's time to replace a bicycle chain but this handy tool from Park eliminates any doubt. It's dead-simple to use - you just put it on your chain, move the gauge to measure the amount of wear, and read the output. If it's time to replace the chain, you'll know immediately.
If you're reading this, you probably know that you need to watch your chain wear because if you ride too long with a worn-out chain you can prematurely wear out the cogs on your rear cassette and wear out the cogs on your chainrings. Chains are cheap by comparison -- you can replace two or three chains (assume you catch them in time) before you need to replace your cassette or chainrings...and this tool removes doubt about when to do that.
A little pricey, but, like all Park Tools, it's a quality piece of gear.
1 of 1 found the following review helpful:
Great Tool Feb 02, 2011
By W. Mitchell
As someone who has had to replace chainrings, cassette and even rear derailleur due to a severely stretched chain, I can tell you that regular chain maintenance and replacement is cheap insurance. I mountain bike in all kinds of muck which can work it's way into the chain and grind the metal away, causing the chain to stretch. As the chain slowly gets longer, the gears wear down to match the spacing of the cylinders. At some point, the worn components will begin to slip and generally misbehave, usually when they are most stressed. Keeping your chain in check helps prevent these problems.
Before I bought this chain checker, I was just using a ruler to measure stretch - which works pretty well, but I really like how accurate this thing is. I know when I'm getting close to needing a change and start monitoring it more closely as it's approaching a reading of .75. There are simpler tools out there (rulers included) but if you want something really accurate and easy to use, the Chain Checker is a great investment.
chain checker Jul 16, 2011
By Sergio
I was unaware of chains stretching until recently. I bought a book on bicycle maintainance and it explained about the importance of keeping bikes clean (chain, chainrings, gear system ) and having everything well lubricated. To make the story short, 2 out of 3 bikes that I own needed the chains replaced. You will slighly notice the difference when you have a new chain on the gear shifting. It feels smotther. Also there is video on youtube that explains how go use this tool. It is very simlpe to use and it is the same tool that my mechanic uses. The only thing is that I prefer my bike mechanic to instal the new chain.
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