A better chain wear checker?

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fausto99
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A better chain wear checker?

Postby fausto99 » 24 Feb 2020, 12:28pm

Hate to admit I don't understand why using most chain checkers is not accurate (sorry Brucey). All that stuff about rollers and pins does my head in; too many words where a nice diagram would be much clearer to me. I also have trouble using a ruler while keeping some tension on the chain - is it me? Probably, yes.

Does this tool https://www.merlincycles.com/pedros-cha ... B4QAvD_BwE get around the objections?

reohn2
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Re: A better chain wear checker?

Postby reohn2 » 24 Feb 2020, 12:40pm

fausto99 wrote:...... I also have trouble using a ruler while keeping some tension on the chain - is it me? Probably, yes......

Knock a nail in the shed wall,hang chain from it,pull chain taut with one hand whilst holding a rule up to the chain.
What could be simpler?
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Mick F
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Re: A better chain wear checker?

Postby Mick F » 24 Feb 2020, 12:41pm

I've never got on with a chain checker.

Two good methods.
One, use the Campag system, but you need vernier callipers.
Chain measurement.png


Two - the best for me - is to use a 39" steel rule.
I have a small G clamp and using a short length of bar, I can clamp the chain at a whole inch position and stretch it out over a yard or so.
I helps if the chain is clean of course, and helps even more if you have a new chain you can clamp next to it.

TBH, I've got to the point of not worrying about chain length any more. I would measure it every time I took it off the clean it.
I can clean it far better and far easier nowadays with the Park Cyclone cleaner using the Screwfix degreaser.
Five minute job and can be as often as I like.
My chains are cleaner than ever now ................ and that's saying something, if you know about me and chain cleanliness. :D
Mick F. Cornwall

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fausto99
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Re: A better chain wear checker?

Postby fausto99 » 24 Feb 2020, 12:42pm

No shed or it's raining/hail/snow/cold outside :lol:

reohn2
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Re: A better chain wear checker?

Postby reohn2 » 24 Feb 2020, 12:46pm

fausto99 wrote:No shed or it's raining/hail/snow/cold outside :lol:

Any vertical surface will do,inside or out.
OTOH if you really want to spend £14 be my guest.
Last edited by reohn2 on 24 Feb 2020, 12:52pm, edited 3 times in total.
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fausto99
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Re: A better chain wear checker?

Postby fausto99 » 24 Feb 2020, 12:48pm

Mick F wrote:I can clean it far better and far easier nowadays with the Park Cyclone cleaner using the Screwfix degreaser. Five minute job

Very reluctant to hi-jack my own post here, but what do you do with the dirty degreaser and how do you stop the Park Cyclone cleaner spraying all over your chainstays, rear wheel, tyre, kitchen/garage floor...... :lol:

reohn2
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Re: A better chain wear checker?

Postby reohn2 » 24 Feb 2020, 12:53pm

Idea No2

A 1m length of 2x1 timber with a nail knocked in it,lay it on any flat surface hook chain on the nail,pull chain taut,measure with a steel rule
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slowster
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Re: A better chain wear checker?

Postby slowster » 24 Feb 2020, 12:55pm

I think your money would be better spent on a similarly priced digital caliper (assuming you don't already have one), and using the method Brucey detailed in his thread Unequivocal chain wear measurement?.

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Mick F
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Re: A better chain wear checker?

Postby Mick F » 24 Feb 2020, 1:46pm

fausto99 wrote:
Mick F wrote:I can clean it far better and far easier nowadays with the Park Cyclone cleaner using the Screwfix degreaser. Five minute job

Very reluctant to hi-jack my own post here, but what do you do with the dirty degreaser and how do you stop the Park Cyclone cleaner spraying all over your chainstays, rear wheel, tyre, kitchen/garage floor...... :lol:
Not wishing to hijack either! :D

If you use it steadily and gently, there is little on no spray. Do it in top gear ie small/outer.
If your cassette is so dirty you need to change gears, you've left it way too late and you'd be better stripping the cassette off and removing the chain and use the jar method.

If you use the Screwfix degreaser, it will wash down away down the sink. Use the degreaser 50/50 with plain water.
The Cyclone will wash in the fresh water too and will be clean.

........... anyway, back to the point of your OP.

The nail (with the head removed) on the wall method works best if you have a new chain to compare it to. No ruler or tools required. Excellent system. Foolproof I reckon.
Mick F. Cornwall

rjb
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Re: A better chain wear checker?

Postby rjb » 24 Feb 2020, 1:55pm

I rotate the chain on the tandem every month now. The old chain gets cleaned and hang on a nail with a new one for comparison behind. I don't get too hung up about chain wear :lol:
Bruce's post from 3 years may provide some help. You've got plenty of time to take it in whilst it's still raining.
viewtopic.php?t=115336 :wink:
Oops someone else has linked to this post upthread. :oops:
Last edited by rjb on 24 Feb 2020, 1:56pm, edited 1 time in total.
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mattheus
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Re: A better chain wear checker?

Postby mattheus » 24 Feb 2020, 1:56pm

reohn2 wrote:
fausto99 wrote:...... I also have trouble using a ruler while keeping some tension on the chain - is it me? Probably, yes......

Knock a nail in the shed wall,hang chain from it,pull chain taut with one hand whilst holding a rule up to the chain.
What could be simpler?


A dedicated go-nogo gauge - which is what this is. It may be a lot of money, but in principle it's a better engineering solution than measuring for wear.


Measuring with rulers/calipers is more error-prone - if you're fine with that, well done, you've saved a few quid :)
Last edited by mattheus on 24 Feb 2020, 2:21pm, edited 1 time in total.

Marcus Aurelius
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Re: A better chain wear checker?

Postby Marcus Aurelius » 24 Feb 2020, 2:04pm

My favourite chain checking method is what I call the run it till it’s crap / broken method. I ride with a given chain until the chain slips on hard efforts / hills, to the point it gets annoying, or it breaks, I carry quick links just in case.

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Mick F
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Re: A better chain wear checker?

Postby Mick F » 24 Feb 2020, 2:19pm

Yes, that only works if you buy the cheaper end of stuff.
Mercian has a Campag 10sp cassette and they ain't cheap.
Moulton has a Shimano 10sp cassette, and cheap as chips in comparison.

When the Campag cassette wears ............. usually the smaller cogs ............ I'll be fitting Shimano. My hub will take both Shimano and Campag. I'll worry about how the Ergos are going to work with Shimano when the time comes.

Gone are the days that I'll be spending nearly £90 for a cassette when I can pay half that with Shimano AND be able to buy separate cogs without a mortgage.
Mick F. Cornwall

whoof
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Re: A better chain wear checker?

Postby whoof » 24 Feb 2020, 2:24pm


Brucey
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Re: A better chain wear checker?

Postby Brucey » 24 Feb 2020, 3:30pm

There are folk who are allergic to any form of measurement; for them this is 'double the effort' (ahem) but two nails on the wall provides an easy method of comparing a new chain with an old chain. No measurements required, because most chains are about 100 links long; thus 1% wear is ~1/2" or one link. 0.5% wear (a 'safe chain change point') is half this.

BTW most chain wear checkers are not strictly speaking 'accurate' because of variable roller measurements/tolerances. But that needn't stop you from using them to change the chain at a safe point, it is just that you don't know what that point is, exactly, and it might vary from one chain type to another.

cheers
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