Huge Shimano crank recall
- familyguy
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Huge Shimano crank recall
Postby familyguy » Fri Sep 22, 2023 7:22 am
https://www.cyclingnews.com/news/shiman ... rash-risk/
https://www.bikeradar.com/news/shimano-crankset-recall/
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Re: Huge Shimano crank recall
Postby Cyclophiliac » Fri Sep 22, 2023 7:42 am
(Yes, I know, the door's *that* way.......)
- MichaelB
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Re: Huge Shimano crank recall
Postby MichaelB » Fri Sep 22, 2023 8:46 am
FINALLY !!familyguy wrote: ↑Fri Sep 22, 2023 7:22 amShimano have recalled three-quarters of a million Dura Ace and Ultegra cranksets due to delamination:
https://www.cyclingnews.com/news/shiman ... rash-risk/
https://www.bikeradar.com/news/shimano-crankset-recall/
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Re: Huge Shimano crank recall
Postby baabaa » Fri Sep 22, 2023 8:51 am
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Re: Huge Shimano crank recall
Postby familyguy » Fri Sep 22, 2023 9:10 am
CPSC recall wrote: Only owners of cranksets showing signs of bonding separation or delamination during the inspection will be provided a free replacement crankset and installation.
I wonder what statute of limitations is on this? If yours don't delaminate for another 2 years, are you still in line for a free replacement? No idea.
Are owners of cranks that have been binned and replaced in line for anything? I'm guessing not.
I'm not surprised it began in the US, but will undoubtedly extend. The EU is already making noises about it. It should extend worldwide at some point.
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Re: Huge Shimano crank recall
Postby warthog1 » Fri Sep 22, 2023 9:51 am
Sometimes it pays to be a tight rs.
11s 105 on all 3 roadies here.
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Re: Huge Shimano crank recall
Postby AndrewCowley » Fri Sep 22, 2023 9:53 am
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Re: Huge Shimano crank recall
Postby skyblot » Fri Sep 22, 2023 12:00 pm
The recall is global. From the Shimano document: "The corrective action is global, but implementation varies by region based on specific requirements and dates"
More information here: https://www.bicycleretailer.com/recalls ... 0-incident
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Re: Huge Shimano crank recall
Postby Retrobyte » Fri Sep 22, 2023 12:33 pm
"If your crankset has one of these production codes, we will inspect your crankset without charge, and if your crankset shows bonding separation, you will be provided with a free replacement crankset.
The timing of the inspection and other details will be announced on this website in the near future. We sincerely apologize for any inconvenience this may cause you, and we thank you for your patience and cooperation."
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Re: Huge Shimano crank recall
Postby ldrcycles » Fri Sep 22, 2023 12:40 pm
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Re: Huge Shimano crank recall
Postby Mububban » Fri Sep 22, 2023 12:49 pm
The specific models affected are the 11-speed compatible Ultegra FC-6800, Dura-Ace FC-9000, Ultegra FC-R8000 and Dura-Ace FC-R9100 chainsets, as well as the FC-R9100P power meter variant.
It affects products manufactured prior to 2019, with one of the following two-letter production codes on the rear of the crank arm.
KF, KG, KH, KI, KJ, KK, KL, LA, LB, LC, LD, LE, LF, LG, LH, LI, LJ, LK, LL, MA, MB, MC, MD, ME, MF, MG, MH, MI, MJ, MK, ML, NA, NB, NC, ND, NE, NF, NG, NH, NI, NJ, NK, NL, OA, OB, OC, OD, OE, OF, OG, OH, OI, OJ, OK, OL, PA, PB, PC, PD, PE, PF, PG, PH, PI, PJ, PK, PL, QA, QB, QC, QD, QE, QF, QG, QH, QI, QJ, QK, QL, RA, RB, RC, RD, RE, and RF.
Shimano's 105 chainsets are not affected by the recall, due to a cold-forged manufacturing process. Likewise, no 10-speed or 12-speed components are affected either.
Although the recall currently only applies to North America, speaking to Cyclingnews, a Shimano spokesperson has confirmed that the safety inspection and replacement program will be echoed in markets worldwide. Therefore it is advised that affected users outside of North America also follow the advice, stop using the affected part, and wait for an announcement in your area.
A worldwide helpline will also go live at 9 a.m. (CEST) tomorrow (Friday 22 September) which consumers can use to ask related questions.
That is quite a lot of people affected.....
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Re: Huge Shimano crank recall
Postby Duck! » Fri Sep 22, 2023 6:19 pm
Also only TT/Tri spec 54/55T big rings.....
Seriously though, although on face value 4500-odd reported failures is a significant number, as a proportion of nearly 800,000 units just in North America, that is well under 1%. So yeah, if you have one of the affected cranks, get it checked out, but the probability of it having a problem is in reality very very low.
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Re: Huge Shimano crank recall
Postby g-boaf » Fri Sep 22, 2023 6:21 pm
That said, I do have a Dura-Ace FC-R9100P crankset on my Canyon so I will be checking that carefully.
Looking at the Shimano site, it makes no mention of 175mm, but rather says you should check the production code and model number. So if you have 172.5mm, you should still be checking it carefully.
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Re: Huge Shimano crank recall
Postby g-boaf » Fri Sep 22, 2023 6:45 pm
QC code on my FC-R9100P.
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Re: Huge Shimano crank recall
Postby warthog1 » Fri Sep 22, 2023 7:45 pm
Stiff, light, don't crack like carbon .....oh wait.As to why they insist on making crappy alu cranks it's beyond me...how is alu a premium product from ultegra level and above??
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Re: Huge Shimano crank recall
Postby Duck! » Fri Sep 22, 2023 7:57 pm
Hahaha yeah....
The problem with carbon cranks isn't so much a tendency to crack, it's the aluminium thread inserts' tendency to debond from the carbon arms and potentially tear out. I've seen many more examples of that failure mode (across several manufacturers) than these debonded Shimano cranks. I love carbon, in its place, but cranks aren't the right place for the stuff.
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Re: Huge Shimano crank recall
Postby warthog1 » Fri Sep 22, 2023 10:45 pm
You'd have seen more than I. I've not heard of any carbon crank failures. I did see one poor bugger with a snapped dura ace crank on the alpine classic a few years back though.Duck! wrote: ↑Fri Sep 22, 2023 7:57 pmHahaha yeah....
The problem with carbon cranks isn't so much a tendency to crack, it's the aluminium thread inserts' tendency to debond from the carbon arms and potentially tear out. I've seen many more examples of that failure mode (across several manufacturers) than these debonded Shimano cranks. I love carbon, in its place, but cranks aren't the right place for the stuff.
I'll stick with my 105 chainsets, the care factor for a few grams isn't there for me.
I liked the poking sh it at aluminium though, thrown back the same stuff that is said of carbon.
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Re: Huge Shimano crank recall
Postby blizzard » Sat Sep 23, 2023 9:13 am
From my understanding is that is 4500 crank failures that were reported to the CPSC, so there are most likely a lot more failures in the field.Duck! wrote: ↑Fri Sep 22, 2023 6:19 pmAlso only TT/Tri spec 54/55T big rings.....
Seriously though, although on face value 4500-odd reported failures is a significant number, as a proportion of nearly 800,000 units just in North America, that is well under 1%. So yeah, if you have one of the affected cranks, get it checked out, but the probability of it having a problem is in reality very very low.
I haven't checked but almost definitely my DA 9100 cranks are in the recall. I don't really like the inspection and if everything is ok, they don't replace them. Seems like any crank in the time period could crack and just because they haven't at the time of inspection doesn't mean that they are safe. I would much prefer them to replace all affected cranks.
Even then the replacement 12sp cranks are made using the same principles, it would be nice to get info on what changed in design / manufacture to prevent future failures.
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Re: Huge Shimano crank recall
Postby Dave_rh » Sat Sep 23, 2023 11:28 am
Shimano 12 speed cranks supposedly have a plug in the hollow axle to prevent water ingress from the non drive side. That's... it.
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Re: Huge Shimano crank recall
Postby Retrobyte » Sat Sep 23, 2023 1:04 pm
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Re: Huge Shimano crank recall
Postby Thoglette » Sat Sep 23, 2023 1:30 pm
Except there’s nothing wrong with the aluminum, it’s the “glue” that’s failed.
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