Sheared Suspension Linkage Rod

RSR racer · Oct 2, 2012

moving from F to P pre-stressed this rod. period. mine sheared off in my hands while trying to back it out from F to P. you were very lucky. washers had nothing to do with it. it sits in there tightly and will move only slightly up and or down...its a linear resistance that it normally has to deal with. mine was the same when re-installing a new one

all will be covered by the warranty as was mine.

Theefiveoh · Oct 2, 2012

RSR racer said:
moving from F to P pre-stressed this rod. period. mine sheared off in my hands while trying to back it out from F to P. you were very lucky. washers had nothing to do with it. it sits in there tightly and will move only slightly up and or down...its a linear resistance that it normally has to deal with. mine was the same when re-installing a new one

all will be covered by the warranty as was mine.

Thanks for the info. My bike is being towed to the original dealer who has done all of my previous work. I am just hoping if it is workmanship that caused this, they will take responsibility and replace every damaged part because of it. I'm hoping they don't try to sweep this under the rug and give me the run around.

jyli19 · Oct 2, 2012

since the linkage rod has threads connecting both ends, i wonder if the heat from the exhaust can lead to premature failure. i never had a bike with the suspension components so hot after a ride.

RSR racer · Oct 2, 2012

Theefiveoh said:
Thanks for the info. My bike is being towed to the original dealer who has done all of my previous work. I am just hoping if it is workmanship that caused this, they will take responsibility and replace every damaged part because of it. I'm hoping they don't try to sweep this under the rug and give me the run around.

go back to your June 1st post on cross threaded linkage bolt in the mechanical section.....that is when it ( the stressor) occured... your tech should have not let you ride like that...I know from personal experience how much force it took to get that bolt out that far and have it look like it was cross threaded entirely.

and he reported it in for warranty, did he not? that should have been replaced by now.

Sleekstyle · Oct 2, 2012

Glad your ok bro, could have been a lot worse. Give ducati hell maybe they will give you a R . Please keep up us updated on what the dealer says about your issue.

Delta One · Oct 2, 2012

Glad you're ok! Good self control.

Seems there must be a better way to do this linkage engineering wise. Perhaps they should consider something with less tensile strength considering the way it sheared? Something with more yield rather than tensile strength? or a combination?

Theefiveoh · Oct 2, 2012

RSR racer said:
go back to your June 1st post on cross threaded linkage bolt in the mechanical section.....that is when it ( the stressor) occured... your tech should have not let you ride like that...I know from personal experience how much force it took to get that bolt out that far and have it look like it was cross threaded entirely.

and he reported it in for warranty, did he not? that should have been replaced by now.

My linkage rod was replaced in early august from that warranty claim. The only stress that could have been placed on the rod this time is the mechanic threading it out to extend it to the "P" setting length. If that in itself causes enough stress on the rod to eventually cause it to snap, everyone who has changed their suspension from F to P is subject to a broken linkage rod, which I hope isn't the case.

Sleekstyle said:
Glad your ok bro, could have been a lot worse. Give ducati hell maybe they will give you a R . Please keep up us updated on what the dealer says about your issue.

Thanks and I couldn't agree more. Getting an R out of this would be nice however very unlikely. I doubt they will entertain any ideas of any complimentary "were sorry" parts. I'm going to be meeting with my dealer here in a little bit to talk over everything.

nyandy · Oct 2, 2012

RSR racer said:
go back to your June 1st post on cross threaded linkage bolt in the mechanical section.....that is when it ( the stressor) occured... your tech should have not let you ride like that...I know from personal experience how much force it took to get that bolt out that far and have it look like it was cross threaded entirely.

and he reported it in for warranty, did he not? that should have been replaced by now.

good to know. didn't see that.

tstephenson · Oct 2, 2012

F'ing scary man

Good job keeping it up - I have track day this coming Monday and this kind of .... weighs on my mind.

tstephenson · Oct 2, 2012

Only see one picture but it is clear you are missing the washers - You need to have everything damaged replaced by warranty due to dealer negligence.

Theefiveoh · Oct 2, 2012

[/IMG]

So far this is the subject that is up for debate regarding the cause for the break. This picture, blown up for ease of view, is my bike. Notice both washers are missing on the linkage rod mount.

Theefiveoh · Oct 2, 2012

[/IMG]

This picture shows the same area, but this picture was taken of an 1199 on the sales floor. Both washers are present.

tstephenson · Oct 2, 2012

Yep major dealer F'up

I hate this .... - this could have potentially been much worse.

Hopefully they see they F'd up and don't hassle you

Theefiveoh · Oct 2, 2012

tstephenson said:
Yep major dealer F'up

I hate this .... - this could have potentially been much worse.

Hopefully they see they F'd up and don't hassle you

That's what I'm hoping for. I really dont want the run around and dont want them to try to sweep it under the rug. I only wan't them to admit fault, take responsibility, fix my bike and make it look as it did before this happened, if not better.

But I do agree with everyone that has stated Ducati should consider replacing the linkage rod with a different material to prevent future repeat performances.

RSR racer · Oct 2, 2012

going to have my porsche mechanic fabricate fixed length dog bones (one in F length and one in P length) to these specs as I do not want any failures. if you are going to track your bike ever, then I would suggest your replacement part be kept in F setting.

Sleekstyle · Oct 2, 2012

Theefiveoh said:
[/IMG]

So far this is the subject that is up for debate regarding the cause for the break. This picture, blown up for ease of view, is my bike. Notice both washers are missing on the linkage rod mount.

Mine is point @ the F not P. may I ask why you did that ?

Theefiveoh · Oct 2, 2012

RSR racer said:
going to have my porsche mechanic fabricate fixed length dog bones (one in F length and one in P length) to these specs as I do not want any failures. if you are going to track your bike ever, then I would suggest your replacement part be kept in F setting.

Thats a really good idea man. Get a patent for the part and sell it to Ducati! Seems like that would have been the way to go from the start!

RSR racer · Oct 2, 2012

Theefiveoh said:
[/IMG]

This picture shows the same area, but this picture was taken of an 1199 on the sales floor. Both washers are present.

btw, those arent missing washers! they are supposed to keep the inner "O" rings seated...cannot believe they were not replaced....total negligence!

Theefiveoh · Oct 2, 2012

Sleekstyle said:
Mine is point @ the F not P. may I ask why you did that ?

I'm assuming you havent read any of the other 9 threads about switching it from F to P. "F" for Flat, is supposed to be designated for track use, since it provides a more linear compression rate. However, F can provide quite the stiff ride. "P" for progressive, is supposed to be designated for street use and if you have a passenger. The compression rate "progressively" gets harder as the shock compresses further. The "P" setting is a little bit smoother for street use and per the manual is for riding with a passenger. I prefer P for everyday riding and canyon riding.

Theefiveoh · Oct 2, 2012

RSR racer said:
btw, those arent missing washers! they are supposed to keep the inner "O" rings seated...cannot believe they were not replaced....total negligence!

Wow. Thanks for the info. This is crazy.

Sheared Suspension Linkage Rod

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