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Old 03-03-09, 06:28 PM   #26
alicestrong
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My Trek is an 850, also.

Maybe I'll just leave it be.
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Old 03-15-09, 09:56 PM   #27
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I finally got my replacement cranks. Let's see how they do. For anyone who's curious, here are the before and after shots:

Before:


After:


Before:


After:
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Old 05-18-09, 11:43 AM   #28
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I have a recalled crank that the bike shop is waiting for Shimano to send the replacement. I have been waiting about a month and a half. The manager said shimano has been getting a little less forthcoming with the replacements.
I dumpster dived a Giant mt bike, and it has the recalled cranks also. I am wondering if I will get any better return time If I write Shimano myself.
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Old 05-20-09, 09:41 AM   #29
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Update I called Shimano they said they have them in stock and could send it to me, but it would be better to take it to LBS. I called differnt LBS they said no problem.
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Old 04-06-10, 12:20 PM   #30
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Bump.

FYI, Shimano's customer service number 800-353-4719 listed here and elsewhere seems to have gone kaput. For the past several weeks all you get is a recording saying "all representatives are in a meeting and will be back at 12". Methinks they all got canned at that meeting, and nobody is left to change the message.

Good new is, as of this writing you can still get replacement cranks from an authorized dealer. I took one of the recalled cranks (an FC-MC12 off a '95 Trek 730) to my LBS last week, and today received not only a replacement crank, but also a chain, bottom-bracket and derailleur. All entry-level stuff, but more than good enough for a 15-year-old hybrid.

Last edited by itsmoot; 04-07-10 at 11:42 AM. Reason: clarity
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Old 08-01-11, 04:32 PM   #31
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Quote:
Originally Posted by itsmoot View Post
Bump.

FYI, Shimano's customer service number 800-353-4719 listed here and elsewhere seems to have gone kaput. For the past several weeks all you get is a recording saying "all representatives are in a meeting and will be back at 12". Methinks they all got canned at that meeting, and nobody is left to change the message.

Good new is, as of this writing you can still get replacement cranks from an authorized dealer. I took one of the recalled cranks (an FC-MC12 off a '95 Trek 730) to my LBS last week, and today received not only a replacement crank, but also a chain, bottom-bracket and derailleur. All entry-level stuff, but more than good enough for a 15-year-old hybrid.
I hate to bump this once more, but the recorded message on Shimano's phone line is still the same more than 1 year later. I have just encountered a problematic crankset that may fall within the lines of the recall.

What was failing on these cranks specifically?
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Old 12-12-11, 05:47 PM   #32
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Bad crank on Trek 850 Shimano FC-MC12

The sprocket side crank broke this morning on my Trek 850. I ended up in the middle of a busy Boston intersection. International Bike in Allston said they will take care of the warranty claim. I ruined a pair of gloves, have scraped hands and bruises. It could have been much worse. I wish I would have known about this issue before. I am thankful for this thread.
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Old 03-26-12, 03:06 PM   #33
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FWIW: This recall is still ongoing... Just dropped my bike off at LBS for new cranks, BB, chain & front derailleur. Will post update when it's done.
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Old 03-28-12, 05:15 PM   #34
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I can confirm this. My Trek was in storage for quite awhile and it was redone at a bike shop as a late Christmas/early birthday present from my son. I would have never known had the caps for my pedals not been missing. I did some research and ran across the recall for the FC-MC12. FYI, the 800 number on the recall notice still works to reach Shimano and the rep was quite emphatic that, yes, they are still honoring that recall.
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Old 03-28-12, 06:54 PM   #35
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They are being replaced with Altus level stuff (FC-M171)... and the FD that comes with the kit is a top-pull, so it didn't work out with my bottom-pull setup.

Last edited by nrowensby; 03-28-12 at 06:59 PM.
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Old 12-14-12, 01:06 AM   #36
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I have a Trek 850 I bought used and ride around L.A. Recently ... you know what's coming ... the left crank broke all the way through about 6 cm from the hub, as I was accelerating.
(Foot, pedal, and about 11 or 12 cm of crank hit the street. Got a cut on my leg but didn't fall.)
Was planning on replacing the left crank only. But after reading this thread -- THANKS, POSTERS! -- will be trying to get the recall service.
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Old 12-14-12, 06:11 PM   #37
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Update: I just got through to Shimano on that line, 800-353-4719 [option 4, for hardware], and the rep said to take the bike in to an authorized Shimano dealer/repair shop -- and my LBS (local bike shop) happens to be one -- for the recall service. Going soon! (Maybe tomorrow.)
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Old 02-12-16, 02:55 PM   #38
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For anybody that is curious I took my 1995 Trek 820 into the shop this week to see if Shiamno is still honoring the recall and they are. Parts coming from California and should be here next week! New crank, front derailleur, bottom bracket and chain on a 21 year old bike for free...can't beat that. The guy at the shop said the Shimano rep didn't even blink or ask for a serial number, he just sent the parts right out. Kinda amazing customer service they have going on there.
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Old 07-19-16, 09:45 PM   #39
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I'm looking at doing this on a 94 830 Trek, and once I get a good look, likely a 730 as well. We'll see what I get from the LBS.
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