View Full Version : Park Chain Checker use question...


S-Works
02-08-2004, 03:06 PM
How much pressure for the measurement. If I go to where the pins start to put a minute amount of tension on the chain, it reads .5, but with a bit more pressure I can get it all the way to 1.0. On the new chain I just bought, the heavy pressure gets it to .5. So, how much pressure do I use.

TIA

Mike T.
02-08-2004, 05:16 PM
How much pressure for the measurement. If I go to where the pins start to put a minute amount of tension on the chain, it reads .5, but with a bit more pressure I can get it all the way to 1.0. On the new chain I just bought, the heavy pressure gets it to .5. So, how much pressure do I use.


That's the problem with mechanical chain checkers. Two people could get two very different answers and as the checker just measures a very small piece of chain, tiny errors are greatly magnified over the whole length of the chain.

That's why I measure a 12" section of chain while still on the bike under derailer tension. When it's grown 1/16" then throw it away. Better still, hang it from a nail, measure 4' and throw away at the 48¼" mark.

Speedub.Nate
02-08-2004, 06:04 PM
The ruler method will always be more accurate than your Park mechanical guage or the Rohloff drop-in guage I prefer.

The good news is that your Park guage will always err conservatively.

"Calibrate" your Park guage to the measurements you get from a ruler. Learn what indication the Park reads for a new chain, for a "broken in" chain, and for a chain that's worn past the 12-1/16" mark (0.5% stretch).

After that, you can rely on the Park guage for regular use, and you'll only have to break out the ruler when the Park guage indicates the chain is nearing replacement.

To be honest, I don't really understand the appeal of Park's guage since it is no easier to use than a steel ruler, is more delicate, and requires less intuitive interpretation to read the indicator. If you ever get a hankering for a true go/no-go drop-in chain guage, check out the offering from Rohloff.

S-Works
02-08-2004, 08:18 PM
To be honest, I don't really understand the appeal of Park's guage since it is no easier to use than a steel ruler, is more delicate, and requires less intuitive interpretation to read the indicator. If you ever get a hankering for a true go/no-go drop-in chain guage, check out the offering from Rohloff.[/QUOTE]

But one of my kids gave me the Park Chain Checker for Christmas, I just got around to using it for the first time. But I'll try to calibrate it for future ues.

Thanks for the help!

Mike T.
02-09-2004, 04:50 AM
the Rohloff drop-in guage


I wonder where THIS idea came from? -


http://gallery.consumerreview.com/webcrossing/images/park(7).jpg

Speedub.Nate
02-09-2004, 06:10 AM
...old dogs and new tricks?!?

And hey, S-Works, no offense intended ? I think it's cool that your family supports your biking by giving through thoughtful gifts.

S-Works
02-09-2004, 07:08 AM
...old dogs and new tricks?!?

And hey, S-Works, no offense intended ? I think it's cool that your family supports your biking by giving through thoughtful gifts.


My wife asks for gift ideas from the kids every Christmas, and there's usually some bike related items ont he list, a chain checker was not however.

My 10 year saw me measuring my chain a week before Christmas and asked what I was doing, I told him and why. When my wife took them to the bike shop for some other items, he saw the chain checker and insisted I needed it. Pretty Cool.

What I'm going to do, is use the chain checker on a new chain, record what the reading is and use that # for future reference when checking that particular chain again

Thanks for your help!.

seely
02-09-2004, 09:53 PM
My wife asks for gift ideas from the kids every Christmas, and there's usually some bike related items ont he list, a chain checker was not however.

My 10 year saw me measuring my chain a week before Christmas and asked what I was doing, I told him and why. When my wife took them to the bike shop for some other items, he saw the chain checker and insisted I needed it. Pretty Cool.

What I'm going to do, is use the chain checker on a new chain, record what the reading is and use that # for future reference when checking that particular chain again

Thanks for your help!.

The chain checker works great... its not dead on accurate but is always accurate whether the chain needs replacement or not. Slip it in between the links push the swinging gauge in firmly (no need to hold it really) and release.... works everytime for me.

Calvin Jones-Park Tool
02-10-2004, 06:55 AM
Any tool that uses hand pressure can be confusing. For the CC-2, try first putting some pressure on the pedals. Then engage the tool on the top section of chain. Push the lever over gently until it contats the chain. Excessive pressure can flex the tool. Consider the pressure similar to a heavy key stroke on a key board, or the light trigger pull of a revolver.





How much pressure for the measurement. If I go to where the pins start to put a minute amount of tension on the chain, it reads .5, but with a bit more pressure I can get it all the way to 1.0. On the new chain I just bought, the heavy pressure gets it to .5. So, how much pressure do I use.

TIA

Speedub.Nate
02-10-2004, 07:02 AM
Any tool that uses hand pressure can be confusing...

What's up with the CC-3? Brand new? Available yet? Will the CC-2 be discontinued?

A step in the right direction, in any case!

Calvin Jones-Park Tool
02-10-2004, 10:30 AM
The CC-3 is new, and should be in stock in any store that wanted to offer them. The CC-2 will not be discontinued.