seypat

Don't worry, Shimano has your backs! In the near future they'll release a new line of cranks/chainrings which will replace those pesky Hollowtech items. The new line of products will have an "all new technology" with a name like "InvisiCore." Suprisingly, it will look identical to the Hollowtech stuff, but will be "all new."

cat0020

Shimano global crankset recall: Everything we know

https://www.cyclingnews.com/features...ankset-recall/

roccobike

As was pointed out, Shimano had previous crankset recalls. I had picked up a used, 1995 Trek 800 in 2007. The crankset turned out to be one that was named in a recall that went back a number of years. Shimano honored the recall notice, BUT what I received was the current (2007) 7 speed crankset. So in the future, after Shimano changes their line-up, they might provide whatever level of crankset is then the current 11 speed. That might be a Tiagra or Sora. From a discussion with a LBS (just today) Shimano is currently replacing with a new Ultegra or Dura Ace to match whatever the owner has.

georges1

This is why I stick since a long time with the Dura Ace FC 7700 and Dura Ace FC 7800 which are among the most reliable and durable cranksets from shimano

genejockey 

But the 7800s are so ugly! I much prefer the 7410, The Most Beautiful Crankset Ever Made.

georges1

I like the 7700 more than the 7410 , it is the one that introduced octalink and hollowtech technology

Jack Tone 

Ouch, Just checked and I have 4 bikes with the recalled cranks. They all Look Ok, though.

Kai Winters

I have an Ultegra crank that meets the recall requirements...now waiting for Oct 1 to begin the procedure

aliasfox

Why wait? My local LBS inspected it on Friday, got it back on Saturday. No issues for me, but he did say my creaking was likely from a dry BB and loose chainring bolts.

It seems like their process is up and running for inspection and documentation, though they hadn’t yet flagged a crank that needed replacement. Supposedly, Shimano isn’t promising a like-for-like replacement, and the LBS theorized that there was a possibility that replacement cranks could be from another line (ie, 105 replacing an Ultegra, R8100 replacing R8000?), or even different sizing (arms and chainrings), depending on what Shimano sends them. If that’s truly the case, I’d be disappointed. I wouldn’t want to bring in a Dura-Ace 50/34 172.5 and get an Ultegra 52/36 175 on the other end…

Kai Winters

Well the info on the Shimano site says it begins on Oct 1
My crank shows no signs of delamination and I would be sorely pissed if they took my Ultegra 50/34 165mm cranks and replaced it with something differently sized.
Apparently they are not learning anything from their manufacturing screwup and are playing the odds...I suspect a high pay out law suit where physical injury occurs and a seemingly careless response may change their mind...as well as the govt's taking some sort of action.

BMC_Kid 

Me too. 7800 group with 7700 cranks.

Jack Tone 

I'm not too worried about the recall since I've found they can be fixed:

spelger

certain to fail. missing a tie strap.

datlas 

Submit to GCN Hack/Bodge. I am guessing bodge.

tempocyclist

Ooof! That's no good. I've got three Ultegra 11-speed cranks. Checked them and thankfully only one is a recalled model number.

znomit

And duct tape is more aero.

cat0020

The Hollowtech crank recall is a nightmare for riders, shops and Shimano.
How did we get here and what happens next?

https://www.bikeradar.com/features/o...call-analysis/

Polaris OBark

A dry BB? WTF? Loosen and then re-torque the chainring bolts. The shop should have done that and replaced the $20 "dry" bottom bracket. (Are they suggesting the grease evaporated?)

Have a look at the Hambini video where he starts twisting on the crank arm.

aliasfox

I think he meant to say that there wasn't any grease on the spindle itself. Yes, he re-torqued the chainring bolts and reapplied grease to the spindle before reassembly. I'm just very surprised that Shimano's quality control allowed chainring bolts out of the factory that loose (4nm is what the shop stated), and that Lynskey was sloppy enough to throw it into the frame without grease. Of course, with the recall announcement (and other build quality niggles on the Lynskey), maybe I shouldn't be that surprised.

In case you're wondering, she's pretty low mileage at ~4,300mi, I'm not exactly a torque monster (about 200w continuous), and I rarely go out in the wet (less opportunity for moisture to wash away grease).

Polaris OBark

I never grease mine. I only put a light coating of tri-flow on before I put it in.

Same with the crank spindle and the bottom bracket.

genejockey 

7700 looks like a fatter 7410.

genejockey 

Interesting. Canyon just emailed me to alert me about the recall, so they have a record of who bought their bikes when. But they should also know that the bike I bought from them came equipped with an R7000 groupset, so it's not affected. Abundance of caution, I suppose.

Trsnrtr

My wife's back-up bike has a 6800 crank (on the recall) with 35k-40k miles on it. I had it in today for a separate issue and the mechanic deemed the drive side crank arm as "suspicious." He said he'd reach out to Shimano as soon as they start accepting claims.

SoSmellyAir

Only pictures I have seen online are issues with drive side crank arm; have not read or seen any issues with the non-drive side.

MinnMan

I got the Canyon/Shimano email today also. I had assumed that I would be unaffected because I purchased mine in Feb. 2020, and the recall affects cranks manufactured before July 2019, but I guess the supply chain isn't that instantaneous, and indeed, my 9100 crank is part of the recall. It looks fine and has nearly 15 k miles on it, so I"m not too worried, but I'll bring it in to my LBS for them to have a look.