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Shimano (US) Ultegra & Dura Ace crank recall

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I haven’t even booked my chainset in as it still looks fine

Mine looked fine until i took them off the bike and removed the chainrings and looked closely, i then clearly saw they were debonding around where the chainring bolted to the arm


 
Posted : 09/12/2023 7:24 pm
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Yes I have heard some are hard to spot for the signs of debonding and being close to potential failure. Is the uptake for this recall high, I understand it's voluntary if there looks to be an issue which once again is not clear cut.

I'll give it a proper inspection before using again. You mention chainring removal also, is that to see the join behind, it is difficult while it's still on I remember when trying to inspect mine. I am not happy with the recall situation like many others as its a bit of a halfway house. They may pass an inspection then in a few months deteriorate. I watched a few of the videos regarding  how to inspect them. I don't think this is the end of it regards the warranty situation. There is a lawsuit out and possibly things may change yet again based on the outcome of things. I have lost confidence in the product to be honest a little bit.


 
Posted : 09/12/2023 7:56 pm
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So this is what ive been told by the bike shop i took my cranks to

If you have some of the affected cranks but they do not show any signs of debonding then still take them to be inspected, if the shop are not sure then they will pass them onto Madison for inspection, if the shop deem them ok then they are ok to use, if they become creaky then you should have them inspected, also they should be inspected once a year

If in the future they do start to debond (say in 2-3 years time) then they will still be replaced, there is no time limit on when they will stop replacing them, this could all change of course

Here's a couple of pics of mine, i couldnt really see anything at first but once the chainrings were removed and i took pics using a flash it became clear they were debonding

https://flic.kr/p/2p6oCst

https://flic.kr/p/2p6qdLi


 
Posted : 09/12/2023 9:15 pm
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@escrs - Thank you, that is really helpful. I've got some Ultegra 6800s that look OK based on a "still fitted to the bike" inspection but I'm of course a bit doubtful - I'll whip them off and take a look. It's the "summer" bike so I've got plenty of time!


 
Posted : 09/12/2023 9:25 pm
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Yes, cheers for the info. I am in the same boat with the crank being on a summer bike so not an urgent concern but I will get them checked out before using. I can see from the pics how easy it would be to miss with a look from a distance in the wrong light. Good that you spotted this an hope the new crank soon. There are lot of 105 compact cranks new around cheap I have noticed but I bet you want to keep it matching, I had considered a 105 but they are black and the ultegra are grey also. The newer ultegra looks very similar to the 105 infact but with the grey finish. The only way as you mentioned to properly inspect judging by those images is to remove the chainrings as you mentioned which I haven't done as yet (the bike is moth balled currently)


 
Posted : 09/12/2023 10:11 pm
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Took mine to my LBS beginning of October, they did the inspection (the first one they had had in), it failed (DA9000) so was sent to madison, by the 16th October I had a brand new DA9100 chain set installed. Mine was the 1st the LBS had seen, so obviously got in before the rush, so worked well for me. Unfortunately on the first ride out I was knocked off by a car, so never really got to use it😀


 
Posted : 10/12/2023 3:00 pm
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I got mine back about 2/3 weeks ago. I only had the drive side arm (Which was the one that failed) as I sold the non-drive side when I replaced the failed arm. I got a brand new crankset with chainrings which I'm pretty pleased with, perfect excuse to buy a new frame to put it on now!


 
Posted : 10/12/2023 4:25 pm
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Anyone know what Shimano are doing if the cranks have a power meter fitted?

I've got a two-sided Giant power meter on my Ultegra 8000 series which is part of the affected batch (though I haven't seen any signs of debonding on mine...)


 
Posted : 10/12/2023 8:45 pm
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Mine failed shop inspection about 2 months ago and were returned to Madison. Not a dicky bird since. Will chase the shop tomorrow but not impressed. 


 
Posted : 10/12/2023 9:01 pm
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still waiting on mine, taken to LBS early October.


 
Posted : 10/12/2023 9:03 pm
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So the shop i took my crank to finally got back to me today and they said Madison are sending the replacement crank out today so it should be with the shop tomorrow

A quick Google and i found this

so im guessing this is what ill receive

Hopefully ill find the time to collect it this week and ill post up a pic of it


 
Posted : 11/12/2023 12:28 pm
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I've just took my chainset off and removed the chainrings after seeing the pics on here over the weekend as they looked very bad. Mine looks to have no issues like that at all. All the joints look perfect still and all in order. I'm cleaning it down while it's off and will check the examination vids again but it looks unlikely it is worth me booking this in as it still looks fine so would not fail an inspection. 


 
Posted : 11/12/2023 7:07 pm
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Update

Got a email from the shop im using saying they have a brand new crank here waiting for me

Get to the shop and they explain why its taken so long and that Madison dont have any of the special 12 speed cranks fitted with 11 speed chainrings yet

He says he has complanied to Madison that this is getting a bit of a joke and the customer wants a replacement crank so he can use his bike (i was happy to wait a bit longer)

He then proceeds to hand me a Ultegra box containing a brand new Ultegra R8000 11 speed crankset

A quick inspection and the production code does not match any of the ones listed on Shimano's website so it was manufactured after 2019 and thus isnt affected by the recall


 
Posted : 14/12/2023 11:14 am
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Prompted me to phone the LBS and they said Madison have sent a replacement chainset to them, he didn't know what it was but I'm guessing it will be R8000 11 speed based on post above. @escrs - did you get a chainset complete with rings?

I had asked for a new 12s chainset, very much doubt I'll get one.


 
Posted : 14/12/2023 11:29 am
 DrP
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Dave - where did you take yours? I think i have these cranks, so would want to take somewhere local..

DrP


 
Posted : 14/12/2023 11:33 am
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SouthDowns, Broadwater branch. Tim was dealing with Madison


 
Posted : 14/12/2023 11:34 am
 DrP
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cool, ta muchly...

DrP


 
Posted : 14/12/2023 11:39 am
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@davosaurusrex

complete R8000 chain set including rings, brand new in a retail box


 
Posted : 14/12/2023 12:05 pm
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got an email saying my replacement will be in next week.


 
Posted : 28/12/2023 3:08 pm
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I got a set of the Ultegra RC-08 12 speed cranks with supposed 11 speed rings. As my new bike is 12 speed and wanting it all to work exactly as it should I ordered a set of brand new 12 speed rings taken off a new bike. I'd put money on the 11 speed and 12 speed rings being exactly the same, they are physically identical. I only have a cheap set of  digital verniers but can't measure any width difference either. I suspect Shimano have done this to save a few quid and because they can't admit that the rings are cross compatible between different speed groupset, because Shimano.

Annoying that I've bought new rings for no reason as far as I can tell


 
Posted : 28/12/2023 4:56 pm
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With 10 & 11 many were using the both and I remember the tiagra 4700 was recommended by many on a 9 speed set up. I haven't used the 12 speed kit yet, I'm still pretty happy with the 11 speed set up. Is it a slightly thinner chain again. I always find my 8 speed chain lasts a lot longer than the thinner higher speed versions like 10/11. 9 is also good.

I stripped my ultegra chainset down and decided against taking it in as it looks fine, will keep an eye on it once I start using again that is.


 
Posted : 28/12/2023 7:14 pm
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@davosaurusrex Even according to 3rd party ring makers, the 11 and 12 speed rings differ.

if they were looking to save cash, they’d send you a 12 spd ring equipped chainset as that wouldn’t necessitate a new SKU.

@jwildcard - independent tests suggest that the thinner chains for higher sprocket count cassettes from both Shimano and Sram last longer than the ticker, lower sprocket count versions.

https://www.pinkbike.com/news/4-key-facts-from-the-cycling-tips-ultimate-chain-test.html


 
Posted : 28/12/2023 9:22 pm
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They wouldn't though, this is a warranty replacement so therefore has to be like for like in terms of compatibility. Mine were 6800 11 speed, despite asking the LBS to request a new 12 speed chainset from Madison, I got the hybrid warranty replacement 


 
Posted : 28/12/2023 10:55 pm
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That’s kinda my point. They have no obligation to change their offer as your needs have changed, and replaced with the chainset they produced specifically for that purpose - undoubtedly at higher cost than giving you an already developed option (which would ironically suit your new needs better).

Hopefully in time you can sell the 11 spd rings to offset the cost of your 12 spd rings.


 
Posted : 28/12/2023 11:25 pm
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I can believe the shimano and sram ranges last 5 mins in 8 speed on their mid range. I switched to kmc x8 and its lasted far better like twice as long, an 8 speed shimano lasted a few months then was stretched beyond as was a standard kmc 8, the x version was fantastic. My 11 spd 105 was corroded after about 3 rides the other winter, very disappointed with the shimano metals. Same with the brake calipers, a handful of rides and one of the caliper bolts had dissolved on 105. Used a 5500 series caliper for about 8 years and no sign of corrosion. There's no doubt the metals are inferior now. As for this chainset, mine still looks new although it's only done about 3000 miles on dry clean weather.


 
Posted : 29/12/2023 12:27 am
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IMG20220903172952


 
Posted : 29/12/2023 10:31 am
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I reckon theres a fair chance that qualifies for a replacement......


 
Posted : 29/12/2023 11:33 am
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@sillyoldman agreed that they are under no obligation to offer a 12 speed alternative, I just thought there was no harm in asking. And yes no doubt there are differences between the older 11 speed groupset rings and the newer 12 speed, the designs have changed. What I'm saying is that I don't believe Shimano have produced new 11 speed rings to fit 12 speed cranks, I think they've just re-stamped the 12 speed cranks and rings 


 
Posted : 29/12/2023 11:46 am
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My understanding is that they’ve made 11 spd rings to suit the current generation (12 spd) cranks. The specific 11 spd rings will be available aftermarket too.

They don’t just stamp them by the way.


 
Posted : 29/12/2023 12:38 pm
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That is how it's been sold, yes. However, I have both brand new sets of rings in hand and I don't believe there is any physical difference between them other than one being marked 11 and the other 12 speed. If there is it can only be in the width. I'd be happy to be proved wrong though.

I'll see if I can post photos later


 
Posted : 29/12/2023 12:53 pm
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If sceptical you could ask 3rd party brands why their rings differ for 11 spd HG chains and 12spd HG+ chains as you think Shimano are trying to pull the wool over your eyes?


 
Posted : 29/12/2023 1:27 pm
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I'm just going on what I can physically see in front of me, I just thought others might be interested as I have both sets of rings. I'm not all that interested in continuing this circular conversation to be honest, thanks for your input though. 


 
Posted : 29/12/2023 2:56 pm
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I thought mine were fine but then saw this on closer inspection.
broken crank


 
Posted : 29/12/2023 3:00 pm
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Yep they are debonding, if you remove the rings it will more than likely continue around the mounting hole for the rings like my pic in one of my previous replys


 
Posted : 29/12/2023 4:44 pm
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@davosaurusrex fair enough. Accusations of lying without anything beyond “they look the same” seems a bit much - that’s all.

I doubt I can tell the difference visually between 7/8/9/10/11/12 spd rings but that means nothing either.


 
Posted : 29/12/2023 5:26 pm
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Thought I'd add that I weighed the big rings and both are 115g. So they look the same, weigh the same, but defo not the same......

@sillyoldman - I'm not sure why you're so affronted that I'm suspicious of Shimano, especially as they have known of these failures for a number of years and decided to do sod all about it until now.

However, I'm sure that the head honchos are weeping into their sake right now because some guy on the internet doubts they are being transparent about this. So now I feel just awful. 


 
Posted : 30/12/2023 3:26 pm
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got my replacements today 🙂


 
Posted : 11/01/2024 3:01 pm
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@Klunk, what cranks did they supply? Mine are off at Madison right now.


 
Posted : 11/01/2024 7:27 pm
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FC-08 (FC-6800/R8000) 52-36 170mm


 
Posted : 11/01/2024 7:31 pm
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I've ended up with a couple of Ultegra cranks affected by the recall. One at least looks fine to me, but I obviously don't want it to fail on me on a ride. Has anyone had any particularly good treatment from any of the chain stores (or any bike shop in Edinburgh) where the shop's default is to arrange a replacement even if they can't see any problem?


 
Posted : 14/10/2024 2:32 pm
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I took mine in two weeks ago for the samw reason to a store who do offer the inspection service. I didn't do it officially i just stripped the bike and chainset down myself and took that in and they said all visually looked well and there was no need to take any further action. Unfortunately with this type of recall they aren't replacing unless there are definite signs of debonding. Its frustrating and i assume your question is to find a retailer who will send the chainset in without question in the hope it will get a replacement by madison.


 
Posted : 15/10/2024 7:40 pm
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MapDec in Kendal had this policy, made a short video where they mentioned such, then seemingly got added to a “banned list” held by Madison when they refused to take said video down. This then lead to another, fairly humorous video/webcast being posted where they doubled down on their position and effectively gave Madison the finger.

I sympathise with them to be honest; their take is ‘if we examine a crank ourselves and declare it OK, and then it fails spectacularly, aren’t we in line for legal action? Best off sending them all off to Shimano then!’ Seems Shimano disagree…


 
Posted : 15/10/2024 10:33 pm
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I haven't even bothered looking at the 6800 cranks on my CX bike. If they were replaced as part of the (not a) recall then a) they wouldn't match the rest of the groupset and b) I don't think they're offering 36/46 chainrings so wouldn't work for me anyway.

(it's all kind of irrelevant anyway as I appear to have given up cycling)


 
Posted : 16/10/2024 1:35 am
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I sympathise with them to be honest; their take is ‘if we examine a crank ourselves and declare it OK, and then it fails spectacularly, aren’t we in line for legal action? Best off sending them all off to Shimano then!’ Seems Shimano disagree…

And pretty much the only way of 'testing' the legality is for a failure to occur (with associated injuries etc) and to see whether Madison/Shimano 'hide' behind the retailer.


 
Posted : 16/10/2024 8:43 am
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I've got three (!) sets of 6800 cranks between mine and my partner's bikes. Unfortunately they're all fine - I've just looked myself rather than faff taking them to a shop. Shame as I like the look of the new slabby ones.


 
Posted : 16/10/2024 10:51 am
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