Shimano US have issued a recall for 760000 Ultegra R6800 R8000 and Dura Ace 900, 9100 & 9100p cranks that are at risk of delamination.
https://www.bikeradar.com/news/shimano-crankset-recall/
I've spoken to Madison (UK distributor) and they're expecting a communication from Shimano Europe tomorrow, Friday 22nd September, so keep your eyes peeled.
Ouch - 0.7% failure rate. My Dura Ace 9000 have a scratch tat would be nice to swap, my Ultegra 6800 are worn from shoe rub. I wonder if it is cheaper to supply with new chainrings, or swap the existing ones?
Only owners of cranksets showing signs of “bonding separation or delamination during the inspection will be provided a free replacement crankset and installation”.
Maybe I should not get my hopes up just yet!
That's going to cost a fortune
My ultegra cranks were bought in 2021 and don't have those product codes. I have always noticed that the join between the two halves of the cranks is not perfectly aligned, no movement or creaks though.
Blimey, I'd heard of issues on the 6800 cranksets going back ~5+ years ago, but not the newer ones.
"Only owners of cranksets showing signs of “bonding separation or delamination during the inspection will be provided a free replacement crankset and installation”."
So it's pretty much a warranty extension then.
Still, big news and FINALLY they've acknowledged the problem that everyone knew about.
good news hopefully we will get this in uk, mine started to debond in 2021 and chain reaction wouldn't do anything as they were older than 2 years
so bought 105 to replace
Kept the cranks though - so will be nice if iwe can get replacements
I remember seeing something about this being geographical, certain areas of the world with similar climates have had the most failures.
When I needed new chain rings for my 6800 I found a new 105 crankset for £10 more than the rings. I now have a 6800 crank in the spares box. I'll double check their condition and hope for a swap... maybe to some XT 😜
My 6800s are in an affected batch. Can't see any issues yet but I have a new bike with 12s 105, I love the look of the 12s Ultegra cranks though!
noeffsgiven
Free Member
I remember seeing something about this being geographical, certain areas of the world with similar climates have had the most failures.
Never heard something like that before. Does 20C and x% humidity make that much difference?
Mine did this long binned them though wisj I’d kept them now
now if only raceface would do the same for all the carbon next cranks with loose pedal inserts 😎
At last Shimano acknowledge it.
Not the quality of Dura Ace 7400 that I still ride on, or 1986 Shimano 600 cranks.
As a manufacturing engineer, gluing stuff together is filed alongside voodo magic and hopes and prayers.
We’ve never had any issues over various sets. Just checked and we do have one set of the effected cranks, it looks fine though
How do you actually tell if the cranks are de-laminating or de-bonding, outside of catastrophic failure? Is it possible?
I have an affected set of Ultegra 8000....
Mine split along the crank arm on the drive side, if you look along the inside of the arm you can see the join where it's bonded.
Only noticed at the start of a ride as it felt like the bottom bracket was twisting, I thought my frame was cracked or the sole of my shoe had split.
<p style="text-align: left;">The bike was 3 or 4 years old at this point and after a quick Google it was a well known problem then but Shimano refused to honour any kind or warranty replacement so I purchased a new 6800 crank with odd chainring sizes that was cheap at the time. I sold the odd chain rings along with the non-drive sized crank from my broken one to recoup my costs</p>
Just checked the garage and I still have the faulty crank but no longer have the non-driveside arm. I wonder if Shimano will honour the warranty without it?
My R8000s aren't on the recall list.
Do you get replacement chainrings as well? In the FAQ in explains how long it will take and possible delays due to chainrings and crank arm lengths?
Yes you get a new 12 speed chai set with 11speed chainrings if your unit is delaminating
Seems my drive side crank is in the recall batch but the NDS was swapped when I got a power meter and isn't on the list. So am I OK to keep riding if I only pedal with my left leg?
Just checked my Ultegra 6800 crankset and its on the list, quick inspection and it looks like the crank isnt sitting flush around where the cranks 5 arm section meets the chainrings which is on the what to look for section on the recall video
Kinda glad i havent used that bike much this summer and spent the summer on my Campag bike instead!
So im guessing if Madison warranty my crank im gonna end up with a Ultregra R8100 crank which wont match the rest of my 6800 DI2 groupset and play havoc with my OCD!
I have an R8000 chainset with a 6800 groupset and it looked weird for about 2 minutes. Then I rode my bike and forgot about it, don't even notice it's not "correct" now.
Not had a chance to ring the shimano number yet, any else done that yet
From shimano website
"Do I have to go to the retailer? Can I send this straight to Shimano?
Please work with your local retailer to submit. Shimano will be working with our retail partners to execute this process and that will allow for the most consistent tracking and overall levels of service."
does this mean you can just go to any shimano dealer ? i.e somewhere you didnt buy cranks from in the first place ?
Never heard something like that before. Does 20C and x% humidity make that much difference?
Two sets of Ultegra here, haven't checked if they are in the affected batches though.
I got the impression if moisture got inside or sat inside the crank it could eventually affect the bonding from the inside.
As my bikes live inside a reasonably warm dry garage I had sort of lazily assumed I wouldn't have any issues, I got the impression people with affected cranks tended to ride them year round and possibly also leave them stored outside or in damp sheds or something.
As on the other thread about this - I only kept the delaminated arms. Sold the rest on, so not sure if they'd warranty me.
But was bloody annoying to have 2 go like this
[img] 
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I got the impression people with affected cranks tended to ride them year round and possibly also leave them stored outside or in damp sheds or something.
Mine definitely used all year round, not only road grime, but sweat maybe could've affected them too. But, you know, they are bike cranks!
Mine definitely used all year round, not only road grime, but sweat maybe could’ve affected them too. But, you know, they are bike cranks!
Oh yeah, absolutely, not blaming people for getting their expensive cranks wet! 😂
I'm just lucky that I still do the whole summer bike/winter bike thing, the bike that sees most rain and salt has either solid aluminium Alivio square taper cranks or Tiagra. I doubt I sweat enough on the trainer to delaminate cranks though, obviously not trying hard enough!
I've got three sets of R8000 cranks, codes PE, UE, and QA.
Seems like the 'UE' ones are not considered an affected model - which makes sense as I believe those were manufactured after 2019.
I haven't had any debonding issues with mine - mine are relatively low mileage as my commuting/training bike usually has 105 cranks installed.
I know a bunch of people who debonded their cranks though, mostly DA ones and higher mileage. Some managed to get a warranty replacement, others were out of warranty.
Will be interesting to see whether the inspection and replace procedure gets rolled out beyond USA.
Those Dura Ace 9000 series chainsets were the last nice looking road chainset Shimano did, not that I could ever afford them.
Quite like the looks of my 6800 chainset so tbh if there are no signs of debonding I won't be too worried about keeping them, reckon they can stand up to my 300W peak power. I've also just replaced the chainrings with FC6800, don't think the big rings are foward compatible.
2 pairs of affected 6800 cranks. I understand why shimano won't make the inspection criteria public but with no obvious signs of an issue I'm not sure I'll bother to take them off and travel to a shop.
does this mean you can just go to any shimano dealer ? i.e somewhere you didnt buy cranks from in the first place ?
Mrs anagallis took her bike into the lbs today, cranks were not bought from them. Inspected, all fine! Although we do use the local bike shop regularly and the bike was bought from them originally but with other cranks and wheels.
I just realized I have two sets of 8000 series cranks and both are affected batches but no sign of delamination or bonding to my layman's eyes.
They've also got 2-sided power meters bonded on so I'd be very pissed off if they have to be replaced (even off settings the potential benefit of getting shiny new cranks with no wear on the horrendously expensive chain rings...)
Hmmm... let's think about this.
- inspect today, VISUALLY (nothing clever like UT) it's not debonding.
- how about in 6 months or a year or two ? Especially if I've hardly used the bike with the cranks on since I put them on (a tri bike... and we had 2 years of sod-all races because of covid, so I didn't ride the bike much. So unlikely to have made them start to fail. But that will change going into 2024.
Annoying as I put the Ultegra cranks on because the SRAM cranks and BB thst came on the bike were shiiite for shifting and chain drop etc, and too long too.
Shimano have published a self-inspect video in the USA, ON YOUTUBE
Local bike shop hasn't had any details from Shimano yet, surprisingly they said I was the first caller but they were aware of the recall.
They thought I was calling for the general inspection and seemed surprised when I have a crank that has debonded. They asked me to email pics over and my details and they'll be in touch.
I now wonder if this is the source of creaking on my Giant Propel (Ultegra 11 speed), rather than the obviously smooth BB. Will swap to a spare 105 crankset and see if the noise goes away. I like my Dura Ace cranks, the last decent looking groupset they made with black and shiny for all tastes.
I've self inspected mine. Both are fine so won't bother with hassle of shop inspection.
Before I either embarrass myself at the LBS or kill myself by continuing to ride, would a more experienced rider cast their eye over these photos of my chainrings? They're in the recall batch, but I can't tell if I'm just looking at the normal interface between the two chainrings, or whether this is a crack.
- Looks buggered to me!
I’ve got two sets and both look fine to me but I’m just a rough arsed chippy and not an engineer.😀
Although I definitely would say that set ^^^ is in need of a replacement!!
Anyone hear anything further on this? Mine failed inspection at the LBS weeks back, they have gone to Madison for further inspection but no word since. LBS also says Madison don't have any of the 12 speed cranksets with 11 speed rings in any case. Considering how many years this has been known about and therefore should have been prepared for it's being pretty shoddily dealt with IMO. I have requested a 12 speed Ultegra chainset as a replacement as that's what my new bike has and presumably they have stock, no word though.
Below is from Gov.uk recall notice;
"Hazard
The product presents a risk of injuries as it has been identified that the outer cover of the crank arm may start to separate from the main crank arm body, posing potential fall and injury hazards to consumers.
The affected products do not meet the requirements of the General Product Safety Regulations 2005.
Corrective action
Modification programme.
Shimano Europe has established an inspection and replacement programme. If a crank arm fails inspection, Shimano Europe will provide a replacement of equal or greater value than the previous crank arm, at Shimano Europe’s sole expense."
Highlighted statement makes me wonder how they can get away with not just doing a blanket recall, without inspections. I guess "affected" is the key word. Reflects really badly on a company the size of Shimano, IMO
Last update I saw was a class action lawsuit has started in the US https://www.bikeradar.com/news/shimano-crankset-class-action-lawsuit/
This is going to take time to play out and I think will eventually lead to a full recall. Just needs an unfortunate rider to have cranks pass inspection only to then fail and cause injury
Anyone had any updates from their LBS or Madison?
The shop im using seem to be terrible at answering their phone and Madison wont give me any info without a reference number which the shop havent given me
The shop is a 30 mile round trip and only open weekdays when im at work so i dont want to have to drive there in rush hour just before they close to find out there is no update from Madison yet
Need to know if Madison will have the replacement crank in the next couple of months as i need to sell the bike the crank came off to help pay for my new one! (already looking at buying a 2nd hand Ultegra cranks that are not in the recall)
So has anyone heard from their LBS or Madison on when replacements will be availible?
Subject of some discussion on our club chat the other day - one guy is waiting for two new chainsets and it's gone quiet.
Mine is one of the at risk chainsers but passed inspection.
Sounds a big mess. It's not ideal either putting non matching series rings and chainsets on your original series 6800 bike. I haven't even booked my chainset in as it still looks fine. Have to wait and see if there is any change in policy but if you are in limbo it sounds like they are unprepared for the demand needed. The scaremongering from those unaffected will no doubt have driven demand for changing also. It's a very strange situation considering how long these were in production. It was a long long time and 2.7 million odd wasn't it?
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
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.
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
@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!
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)
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😀
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!
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...)
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.
still waiting on mine, taken to LBS early October.
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
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.
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
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.
Dave - where did you take yours? I think i have these cranks, so would want to take somewhere local..
DrP
SouthDowns, Broadwater branch. Tim was dealing with Madison
cool, ta muchly...
DrP
got an email saying my replacement will be in next week.
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
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.
@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
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
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.
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.
I reckon theres a fair chance that qualifies for a replacement......
@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
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.
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
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?
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.
I thought mine were fine but then saw this on closer inspection.
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
@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.