Abnormal chain wear - what could be the issue?

Equipment
21

That seems quite a long time to ride on 1 drop of lube per link. I’m not familiar with Purple Extreme but using Squirt I wipe the chain with a rag between rides and put a drop on per roller every 50/100 miles depending on conditions. This generally means a little bit of lube goes on after every ride.

22

I thought it stood for “Wire drier” as it was used to displace water from electronic equipment. Either way, WD40 < > bike lubricant.

23

Have you measured a brand new chain with the same tool? As mentioned, if your CC-2 is borked, you could at least better understand chain wear in a relative sense.

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24

Just to be clear to OP I was using the WD40 occassionally (along with yellow muc-off) to clean my drive train / chain not to lubricate. FWIW at the time I was using Muc Off Dry Lube as my primary chain lubricant.

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25

Well said, this is the point my mechanic was trying to make to me.

26

That’s a good idea, will try that on the next chain.

27

Interesting, I had never seen that frequency in lubing. I can try that next time too. I can just wipe and lube instead of the longer process of using a Park Tool Cleaner + WD40 + Simple Green a degreasers.

28

@splash , if youve used squirt, then you understand the benefits of waxing. I change chains every week, keeping two per bike. This is approximately 120 miles or 8 hours riding a week, use Molten Speed Wax, one pack will last 6 months at least.

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29

Thanks, I’m going to give that another go. I’ve used squirt because its so much less faff, but I’m not convinced it creates a coating thats as good as hot wax.

30

The only chain checker you should trust is one that measures from the same side of the rollers, like a Shimano TL-CN42 (https://www.amazon.com/SHIMANO-TL-CN42-Chain-Indicator-Silver/dp/B00CABI1GW).

Park makes good stuff, but the CC-2 (and most other “push apart” style chain checkers) is based on flawed measurement technique (pushing both rollers apart), plus the accuracy is suspect simply because of the construction (the pins can bend, and a checker should be go\no-go interference fit, not pushing things apart from the inside).

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