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Broken FSA Gossamer Spindle

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Broken FSA Gossamer Spindle

Old 05-29-16, 03:08 PM
  #1  
DGalt
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Broken FSA Gossamer Spindle

I took apart my chainset today as part of some maintenance and found that the spindle where it connects to my left crank has broken:



I'm not sure when this would have happened - I haven't noticed any significant looseness in the crank, although there was some creakiness in the past week or so (which is partly what inspired the maintenance).

Doing some digging, I'm wondering if this is related to a recall I found posted by FSA for this crankset (CK-6020):
FSA GOSSAMER BB30 RECALL NOTICE - FSA

The crankset is ~ 3 years old (came with the bike) - I don't really know what their lifespan tends to be though.

I've found a couple other posts on various forums citiing issues with FSA's cranksets, but most of these are from several years ago. In finding a replacement should I be worried about sticking with FSA? What would be some alternatives (including replacing the BB)?
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Old 05-29-16, 04:15 PM
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The recall is for BB30 cranks with self-extraction nuts, and the damage is done to the crank arm, not the spindle. You have the older design with a 24 mm spindle.

I've never seen this kind of damage before, and I have no idea what would cause it, beyond assuming that something wasn't coming loose or over-tightened.

While I believe Gossamer cranks are generally under-rated by road community, Shimano's and SRAM's are better, especially in the bearings. I recommend matching your crankset to the rest of the drivetrain. So if you're running 10-speed Shimano, look for an older 105 or Ultegra unit, or a new 10-speed Tiagra crankset. They use the same 24 mm spindle. Take this as an opportunity to replace the bearings, too. The bearing is the interface between the crank and the frame, press-fit or threaded, so have your local shop measure the BB shell and help you make a selection.
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Old 05-29-16, 05:54 PM
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Thanks for the quick response, and the clarification. My current setup is SRAM Rival 10 speed

Edit:

More specifically, these are the full specs on what's currently on the bike:
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Last edited by DGalt; 05-29-16 at 06:06 PM.
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Old 05-29-16, 07:04 PM
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For comparison I have a TA crank set I bought in 2001 with 120,750 miles on it. It's a square taper.
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Old 05-29-16, 07:05 PM
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Looking at the specs says purchase a SRAM Rival crankset. It will match the rest of the bike beautifully.
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Old 05-29-16, 07:15 PM
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Originally Posted by blakcloud View Post
Looking at the specs says purchase a SRAM Rival crankset. It will match the rest of the bike beautifully.
That's the plan, although I'm a little confused about the specifics in terms of sizes, particularly for the new BB.

Last edited by DGalt; 05-29-16 at 08:12 PM.
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Old 05-29-16, 09:22 PM
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A bit more googling around - it seems I just need a 68mm BB. So if I'm going with SRAM just get the SRAM Rival crankset with GPX BB?

https://www.worldwidecyclery.com/pro...E1sxoCzOzw_wcB
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Old 05-29-16, 09:31 PM
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Originally Posted by DGalt View Post
A bit more googling around - it seems I just need a 68mm BB. So if I'm going with SRAM just get the SRAM Rival crankset with GPX BB?

https://www.worldwidecyclery.com/pro...E1sxoCzOzw_wcB
Right.

Assuming your frame has English threading (and nearly all of them do), you want this bottom bracket. https://www.worldwidecyclery.com/col...m-bracket-gray
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Old 05-29-16, 09:51 PM
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Originally Posted by oldbobcat View Post
Right.

Assuming your frame has English threading (and nearly all of them do), you want this bottom bracket. https://www.worldwidecyclery.com/col...m-bracket-gray
Right, I believe that's the one included in the one I linked to (unless there are different SRAM GPX BBs?)
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Old 05-30-16, 05:38 AM
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Personally, I'd take it to my LBS and have them contact FSA and see if they will do anything about it. Often manufacturers will send a replacement with a return shipping label for the warrantied part, even if it's beyond the normal warranty period if the failure is something that isn't likely to be from misuse or crash, which seems to be the case here. Sometimes the process is quick and sometimes it can take a few weeks if they want to see the part first, so that's a consideration.
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Old 05-30-16, 09:12 PM
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Originally Posted by DGalt View Post
Right, I believe that's the one included in the one I linked to (unless there are different SRAM GPX BBs?)
Oops, I didn't see that English threaded bearings are part of the crankset package. Cool.
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Old 05-30-16, 10:12 PM
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Gossamer is A way of saying Light. " used to refer to something very light, thin, and insubstantial or delicate."

apparently Too Gossamer .

3 years is 2 years longer than Typical component warrantees .. 12 mos.
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Old 10-10-17, 07:34 AM
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FSA Gossamer brocken spindle

Hi,
I have the same issue with the FSA crank axle or spindle. It just broke.



Now thinking about replacing it. It turn out that I should buy a new crankset in full, because the axle is connected to the arm without a possibility of replacing only the axle.
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Old 10-11-17, 09:47 PM
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Originally Posted by fietsbob View Post
Gossamer is A way of saying Light. " used to refer to something very light, thin, and insubstantial or delicate."

apparently Too Gossamer .
heh heh.

Originally Posted by fietsbob View Post
3 years is 2 years longer than Typical component warrantees .. 12 mos.
Agree, but if this failure is commonplace, it's a design defect and FSA should address it. Heck, it's probably a liability issue if you're cranking on the thing going downhill at 60km/hr and it breaks.

Your probably right, but sending them the pic (And the pic of the other guy's broken crank) and telling them you're discussing it on bike forums, and you may get some sort of consideration.
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Old 10-12-17, 08:22 AM
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Originally Posted by WizardOfBoz View Post
..............sending them the pic (And the pic of the other guy's broken crank) and telling them you're discussing it on bike forums, and you may get some sort of consideration.
IMO, don't do it in a demanding or threatening way. Just show them that you and others have had some issues and want to know if there is anything they can do to help you.

Threats will turn most people off from any desire to help if they know the legal end will be on their side.
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Old 10-12-17, 12:04 PM
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a good company will want to see the failure... a good company will replace the crank set, then have the part shipped to them at their expense... a good company will send the replacement after seeing a photo of the failed part... this is how any modern company does warranty replacement...

time should not be a factor in whether they replace this part since that sort of failure is a serious safety concern... replacing a failed crank set is way cheaper than a gaggle of lawyers, and possible massive payouts.

i've seen this failure of a similar crank set before... and another similar failure is imaged in this thread... i'd bet FSA will be more than happy to simply replace it.... if they're not, then they are not a good company, and they might want to reconsider the continued employment of whoever decided not to simply replace that snapped crank.

typical warranty procedure at several places i've worked... identify issue, document issue, contact manufacturer, send image of failed part if so requested, they ship new part, installing party holds part for 6 months on dusty shelf in dark corner of shop after tagging part with work order number and date of replacement, throw part in recycle bin after six months.... installing company receives a check for part of labor as specified in the flat rate chart for removing/installing part... customer is billed for nothing in relation to that part's failure/replacement.... customer abuse of machines will not be covered under warranty... since there is a documented history of this particular failure, you should receive a new crank set, IMO...

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Old 10-12-17, 04:21 PM
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Originally Posted by Iride01 View Post
IMO, don't do it in a demanding or threatening way. Just show them that you and others have had some issues and want to know if there is anything they can do to help you.

Threats will turn most people off from any desire to help if they know the legal end will be on their side.
Absolutely. "I was dissapointed to see the break, I posted the pic on Bike Forums, and several folks suggested I contact you to see if this is something you can help me with on warranty. Another guy wrote in, and posted the pic below to say that he had experience the same issue.

So I'm writing to ask if you can help me. Thanks in advance."

Matter of fact, but they should know folks are watching. I'd want to know if I were them!

Looking at the pics, I'm kind of surprised to see this same failure mode in two FSA cranks.
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Old 10-13-17, 05:14 AM
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I asked local guys, they told that this is common with FSA cranks. Probably they produced several years ago cranks with a defect, and now they start collapsing one by one in different part of the world ))).

My bike is old, I bought it second hand, and done so far 6000 km this year. But I am also heavy - 100 kg, and And push powerfully often to the limits. Get some KOMs with the average speed close to 40 km.h, on a hill with 4 % grade and 700 m long )))

Apart from boasting, I am not surprise that the crank axle was broken. But also I think it should be developed for such loads, otherwise what's the point of cycling fast?

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Old 10-13-17, 05:22 AM
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This is once again the recent photo. Bad that it is now very nice weather to cycle and I am waiting spare parts delivery
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Old 10-15-17, 07:53 PM
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Haven't been paying attention to this thread since I had posted about it a while back. FSA was great in my experience. I contacted them, they had me send them some pictures and had me return the broken part (I believe they paid shipping). And then they sent me a replacement crankset. I would definitely just contact them - mine was definitely outside the warranty period, but they were still very helpful
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Old 10-16-17, 12:03 PM
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Nice!
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