MegaSack DRAW - This year's winner is user - rgwb
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Why is my Park CC-2 chain checker giving me a differnet reading from my CC-3.2, CC-2 shows red, CC-3.2 shows nowhere near .75 worn!
Cos Park tools are overated.
Is your chain the right way up?
[b]this really is a first world problem [/b]
bad day junkyard?
Seems a relevant Q on a bike forum. Just saying like.
Use a metal ruller. Much more accurate. Then change the cain if it is 1% stretched, or 3mm over the 12" mark.
Oh sorry I should have been helpful like you 😯
Sorry OP it was meant as joke.
I have no idea but check which is most accurate with a metal ruler as above and sell the inaccurate one to al 😉
Cool, I wasn't expecting entertainment as well as an answer
Use a metal ruller. Much more accurate. Then change the cain if it is 1% stretched, or 3mm over the 12" mark.
Only in Britain would we have mm and inches being needed to make one decision 🙂
Only in Britain would we have mm and inches being needed to make one decision
I didnt even notice i did that, 😆 Either way it still works.
Use a metal ruller. Much more accurate. Then change the cain if it is 1% stretched, or 3mm over the 12" mark.
Sheldon Brown advised chain change at 12.0625” (12 1/16”) (normally the first mark past 12"), which equates to 0.5% wear.
For the umpteenth time (why don't isn't this a sticky on every cycling forum/website), chain wear checking tools (except the £50 Shimano one) measure roller wear too, which isn't relevant, which explains why the £50 Shimano one doesn't measure it! There's a website out there somewhere with pictures and math and shit for anyone that needs convincing.
Is it the PArk one with the moving wotsit? I find that goes wobbly over time and gives inconsistent results. Rohloff one is much more accurate...
Tucker, you saved me from a lot of typing. I use the rohloff tool as a rough guide because It's easy to check regularly. Once that says It's knackered, I use a 600mm steel rule to measure 0.5%. The longer the rule, the more accurate the measurment. I've marked the rule with green and red tape to show new and worn. Play about with the maths a bit and you can find a point where both are whole mm to make reading it easier.
Anyone tried the expensive Shimanoj one? Ben?
Nope - I'm not sure it'll be any more accurate than the Rohloff one...
I have a cheap Cyclo checker. Have kept an eye on my last sram 9spd pc971 religiously.
I put a new cassette and middle ring on when that chain was first fitted.
It got to showing .75% and I carried on riding it. When it just got to showing 1% and only just, I put another new one on.
Too late, cassette and I suspect middle ring worn too, I now have meshing problems on the taller gears on the cassette.
Am now thinking shove the checker, keep riding and replace them all again, when things actually appear worn. 😐