Best eMTB 12 speed chain? **UPDATE**

Zaskar20

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Aug 17, 2021
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Approximately 250 miles per month.

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A86B5271-9445-4A36-87AC-C0D811B5A6C8.jpeg
 

Zaskar20

Active member
Aug 17, 2021
140
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3D6F03F9-7F40-4147-822E-660C0FBF989B.jpeg

3 Months wear with approx 750 miles!
When do I change?
Now, or when itā€™s above the line below 0.6?
 
Last edited:

Zaskar20

Active member
Aug 17, 2021
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So, itā€™s been 4 months with this KMC DLC chain and I have been impressed. Shifting has been exemplary and, as you can see from the 1st photo above, the plates are still like new!
I have ridden the best part of 900 miles in those 4 months. The rollers have worn to 0.6.
Itā€™s now time to change.
I canā€™t recommend this chain lube enough. Itā€™s not expensive and does a great job. Itā€™s a light lube that I apply regularly. It keeps the chain clean too.

Now moving on and trying a different make.
SRAM PCX01 Eagle

Itā€™s got me wondering, do the longer lasting chains wear the cassette and chainring more given the same use? If they use harder wearing rollers they would have to, wouldnā€™t they?
 

Zaskar20

Active member
Aug 17, 2021
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fitted to your 900mile worn cassette, jockeys and chainring?
If so I hope you're not intending on measuring it's life and reporting back anything meaningful
Actually I was!
2-3 chains in the life of eMTB cassettes isn't it?
 

Gary

Old Tartan Bollocks
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Then you're deluded.
New chains on worn sprockets and chainrings don't wear at the same rate as new chains on new sprockets and chainrings
 

Gary

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2-3 chains in the life of eMTB cassettes isn't it?
It's not a firm rule. it's just a theory that was made up and repeated over and over again ad infinitum. There are far too many variables for chain rotation to always yeild the same results. and in many cases it's actually detrimental to drivetrain life.
I don't rotate chains at all. current chain has had over 5500 miles use
 

Gary

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Makes just as much sense for any derailleur system.
No one uses each gear equally.
And even if they did. Each separate sprocket has a different load and wear rate due to each having differing tooth counts, ratios and typical applied torque.

But by all means continue changing your chain every time you wash your socks if you're daft enough to spend hundreds of pounds on a super light 12spd cassette
 

Zaskar20

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Aug 17, 2021
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Makes just as much sense for any derailleur system.
No one uses each gear equally.
And even if they did. Each separate sprocket has a different load and wear rate due to each having differing tooth counts, ratios and typical applied torque.

But by all means continue changing your chain every time you wash your socks if you're daft enough to spend hundreds of pounds on a super light 12spd cassette
I am liking the thinking, but my question is I use about 4 of the rings more than the others. Some I hardly use. If the chain does as many as you have done wouldnā€™t it skip on the rings hardly used?
Obviously it would be fine on the rings that are used most.
 

johnf0246

Active member
Jan 22, 2021
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Sedona, Arizona
I just changed to a new Shimano xt chain after 3,300 miles of use. I kept the same xt cassette and front chain ring. The number 3 cassette cog skip a little under load, all others work fine. I am hoping the #3 will work in after some light use.

I donā€™t use lube. I hot paraffin/Teflon the chain in a crock pot every 200/250 miles.
 

Gary

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I am liking the thinking, but my question is I use about 4 of the rings more than the others. Some I hardly use. If the chain does as many as you have done wouldnā€™t it skip on the rings hardly used?
My gearing is optimised to my riding so my chainring is 36t and cassette is 11-36.
I use all the gears. But not evenly My most used sprocket being the 13t and least the 36t.
A worn drivetrain will almost always slip on the smaller sprockets first due to reduced chain wrap and fewer sprockets in contact.

Optimise your gearing for the riding you actually do.
I'd honestly question whether a silly little chainring and 12sp 9-52 cassette is optimum for most mtb riding while assisted.
 

Pdoz

E*POWAH Elite World Champion
Feb 16, 2019
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Maffra Victoria Australia
My gearing is optimised to my riding so my chainring is 36t and cassette is 11-36.
I use all the gears. But not evenly My most used sprocket being the 13t and least the 36t.
A worn drivetrain will almost always slip on the smaller sprockets first due to reduced chain wrap and fewer sprockets in contact.

Optimise your gearing for the riding you actually do.
I'd honestly question whether a silly little chainring and 12sp 9-52 cassette is optimum for most mtb riding while assisted.

Gary, am I correct you run smaller wheels ? Before frying my brain trying to convert you gearing preferences, I wanted to covert them to 29 equivalent
 

Gary

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27.5 on my eeb

To convert my gearing to a 29er simply go down to a 34t chainring and you'll be close enough.

My preference is still 26" on my normal mtbs. And I run 34t chainrings on those with fairly narrow range cassettes compared to pretty much everyone else.
DH bike is also 26" and on that I run a 36t with custom 5spd 11-19 cassette. And NEVER use the 19 or 17t sprockets I only mention this so you can get an idea what my preferred descending gearing is.

With a motor 36x36 (27.5)will get me up anything I'd ever want to. That'd equate to 34t chainring and 36t cassette sprockets for a 29er
 

Pdoz

E*POWAH Elite World Champion
Feb 16, 2019
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Maffra Victoria Australia
27.5 on my eeb

To convert my gearing to a 29er simply go down to a 34t chainring and you'll be close enough.

My preference is still 26" on my normal mtbs. And I run 34t chainrings on those with fairly narrow range cassettes compared to pretty much everyone else.
DH bike is also 26" and on that I run a 36t with custom 5spd 11-19 cassette. And NEVER use the 19 or 17t sprockets I only mention this so you can get an idea what my preferred descending gearing is.

With a motor 36x36 (27.5)will get me up anything I'd ever want to. That'd equate to 34t chainring and 36t cassette sprockets for a 29er

Thanks, that makes more sense - so with piss weak fat old man legs and a levo sl I'm still a whimp
 

Desert_Turtle

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Mar 1, 2022
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Palmdale, CA
Iā€™ve had very good luck with YBN chains. I suspect that theyā€™re made by the same folks that make SRAMs XO1 chains. They are exactly the same. They have the same hollow pin design and they come pre PTFE coatedā€¦SLA1210 is the model #. They are very nice.
 

SteveRS

Member
Jun 9, 2022
107
78
British Columbia Canada
Well, just snapped my GX chain today. I was standing up and pedalling into a jump when it the links snapped in two. Of course the bike was sent into an out of control sideways joyride where I injured both my ankles as well Lol. Anyways, time for a new chain. Still donā€™t know what the strongest option is. Looks like the X01 is a stronger chain than the GX. Think I will as some LBS as well.
 

mcboab

Active member
Aug 2, 2022
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102
NE UK
This is my week old XX1 chain , swapped the oem NX? chain & cassetted for XX1 . Snapped on a rocky hill cimb which then necessitated a 3mile push home. The chain pulled a normal hollow pin not the quick link. Going to repair with a 2nd quick link to see how it holds up.
IMG_4124.jpeg
 

SteveRS

Member
Jun 9, 2022
107
78
British Columbia Canada
This is my week old XX1 chain , swapped the oem NX? chain & cassetted for XX1 . Snapped on a rocky hill cimb which then necessitated a 3mile push home. The chain pulled a normal hollow pin not the quick link. Going to repair with a 2nd quick link to see how it holds up.
View attachment 94826
Thatā€™s really sucks. Did you not have a chain break? I used the chain break that comes with the Levo in the steer tube to repair it on the trail. Chain break, tube with basic tools are a must have when riding.
 

mcboab

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Aug 2, 2022
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Thatā€™s really sucks. Did you not have a chain break? I used the chain break that comes with the Levo in the steer tube to repair it on the trail. Chain break, tube with basic tools are a must have when riding.
This is my 3rd chain break in eons (more than a double decade) of riding , the 1st two were aged/snapped side plates (cheap KMCs) this is the 1st new chain stress break for me . There is no tools on a Mondi Crafty and no storage either, Though I'm now carrying a breaker and spare quick link in my camelbak, lesson learned. PS tested the fixed chain albeit on easier (lower Torque assistance) trails and its still attached.
 

SteveRS

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Jun 9, 2022
107
78
British Columbia Canada
I contacted Specialized to ask what chain they recommend for the turbo Levo, and they said either a SRAM XX1 or KMC e12 turbo. After looking at both, I ordered the KMC. The KMC claims up to 7500 kmā€™s and boasts unmatched strength. Weā€™ll see about that. I found out that the GX chain isnā€™t a strong chain, so either option is an upgrade.
 

Zaskar20

Active member
Aug 17, 2021
140
133
UK
Well Iā€™ve opted for an expensive chain ā€œDiamond Like Coatingā€
I canā€™t lie, I liked the bling aspect as well as the hardness and durability claims.
Letā€™s see how long it lasts.
Anyone had any experience of this chain?

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It was a great looking chain, but wear wise it was pretty disappointing!

I replaced with a SRAM X0 which looks like its going to last at least twice as long.

This test seems legit regarding MTB chains. Shimano XTR looks like it would be worth the money.
Finding the best bicycle chain: What over 3,000 hours of testing revealed - CyclingTips
Looks like this article is pretty accurate as far as I'm concerned.
 

SteveRS

Member
Jun 9, 2022
107
78
British Columbia Canada
It was a great looking chain, but wear wise it was pretty disappointing!

I replaced with a SRAM X0 which looks like its going to last at least twice as long.


Looks like this article is pretty accurate as far as I'm concerned.
Thatā€™s not their emtb chain, the e12 turbo is ā€œ apparentlyā€œ the strongest chain. I will give updates once I receive it.
 

salko

E*POWAH Elite World Champion
Aug 29, 2019
1,275
867
SLO
My Sram X01 Eagle chain has almost 2000kms and wear about 0,25% (measured with a ruler), I think this chain has very good price/performance ratio ...
 

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