Thomas

Last Sunday evening I installed a 2nd Chinese TANKE 10S chain.

Today, after just one week of usage, and a distance of 580 km (370 miles), it was worn out.

I had cleaned and lubricated the chain every day.

What I observe is:
* the chain is only moderately lengthened (less than 10mm over 112 links)
* the rolers are worn out (0.075 to 0.08 mm)
* the links with the "TANKE magic buckle" are badly worn out (> 0.1 mm)

This is not a chain - that's a sham!
#tanke #bikerepair #chinaTech #cycling

Feb 15 at 5:25pmWeb
Show threadThomasFeb 16

Update "TANKE 10S 500km chain": I opened a low-quality complaint and got a full refund.

Right now I use a different low-cost chain: RiderACE 10S. Let's see how long that one lasts.

Show threadPaul SouthworthFeb 18
@tg9541 it's been two days so you owe us a chain wear measurement 🍿
Show threadThomasFeb 18

@pws

1st day, 78km ~0.05
2nd day, 74km ~0.06
3rd day, 90km, >0.06

After the 1st day I was "surprised".

A funny wear pattern, isn't it?

Show threadPaul SouthworthFeb 18
@tg9541 Totally speculating here, but I would expect some "bedding in" before the real wear starts to happen, but I haven't the faintest idea how that chain will perform. I'd guess not very well.
Show threadThomasFeb 18

@pws that was also my thought when I measured after the ride yesterday - I had expected the chain to be done, but to my surprise the additional wear was "just" 0,01 (which is still really really bad for short of 50 miles).

My money is on "500 km". Maybe it's from the same "sham" factory with different link logos? 

Show threadThomasFeb 20

@pws No, not 500km.

https://mas.to/@tg9541/116098721137344777

Show threadDianora (Diane Bruce)Feb 15
@tg9541 Interesting. I bet the metal in the rollers and links was not hardened but plain old steel. A file would not be able to cut hardened steel.
Show threadThomasFeb 15

@Dianora yes, that's also what I guess. The pins must be better hardened than the rollers (if the latter are hardened at all).

Unlike the regular chain pins those of the master link are likely not hardened.