BMW K1200, K1300, and K1600 Forum banner

2010 K1300R snapped suspension arm.

922 Views 49 Replies 9 Participants Last post by  WPV
So, I’m currently waiting to be recovered from the roadside.
My lower arm on the suspension dog bones has snapped.
thankfully i was only doing 30mph at the time so when it snapped and the suspension collapsed it just crushed my rear hugger and skidded the bike to a halt.
no crash, no injury.

looking at used parts online would a K1200R part be the same replacement?
Or do i have to use a K1300, and any difference between R or S I’m assuming they are the same?
A link to a new one (in UK) would be a great help.
  • Wow
Reactions: 1
1 - 20 of 50 Posts
Looks like a brand new one is $260?

33 53 7 714 366​
DEFLECTION LEVER​
0.74​
1​
$260.69
ADD TO CART
See less See more
Looks like a brand new one is $260?

33 53 7 714 366​
DEFLECTION LEVER​
0.74​
1​
$260.69
ADD TO CART
Good to hear that you're OK. That was a close one.

According to MAX BMW Parts Fiche, that part fits all K1200 and K1300 variants.

Do you have any idea what caused it to fail?
No idea. Looks like metal fatigue.
bike is only a2010 so 13 yr old metal suspension components snapping off is not good!
I’m 12 stone and wasnt giving it the beans in and out of the bends so no excessive suspension compression and release and stuff.
Post some pics when you get yours off. I'd like to see them.
Will the driveshaft be ok?
Not sure it’s designed to function at the angle it is at, and it ran for 10metres or so at a strange angle
7 years or so ago there was a recall on that part. They were breaking because the needle bearings at each end were not being greased on a every two year basis. The new arm is stronger so don't use a used one. And there are a total of four needle bearings in that area dealing with the linkage. They need to be cleaned, checked for corrosion and either lubed with water proof grease or replaced if in poor condition. I'm glad you are okay. What a terrible thing to happen. I hope all the readers take note. This subject has come up before but no one has experienced a total failure like you have experienced.
  • Like
Reactions: 1
Is anything attached a lubrication point.

Attachments

7 years or so ago there was a recall on that part. They were breaking because the needle bearings at each end were not being greased on a every two year basis. The new arm is stronger so don't use a used one. And there are a total of four needle bearings in that area dealing with the linkage. They need to be cleaned, checked for corrosion and either lubed with water proof grease or replaced if in poor condition. I'm glad you are okay. What a terrible thing to happen. I hope all the readers take note. This subject has come up before but no one has experienced a total failure like you have experienced.
GA they spec optimoly. UK seems nasty for BMW metallurgy.
Dampness and salt???

Imma go lube mine. I doubt they've never been looked at on my, or any others' bike.
  • Like
Reactions: 1
The fall back for everything... Optimol TA. I am afraid I disagree and I use a high quality marine environment grease. Confirmed the fact that the original lube in the bearings was not Optimol but a real grease. But, the object is to keep the thing from locking up. The UK environment is hostle. So many folks on this forum and my old S bike UK forum complained about corrosion. Whether it is salt air, winter road chemicals I don't know but certainly problems there.
If you look up the Optimol TA spec sheet it specifically states "For paste-specific applications - cannot replace oil or grease lubrication."

As Beech says a quality marine grease is a good go to.
  • Like
Reactions: 1
If you look up the Optimol TA spec sheet it specifically states "For paste-specific applications - cannot replace oil or grease lubrication."

As Beech says a quality marine grease is a good go to.
Looking at the manual it seems they just mean do the bolt threads and not the bearings themselves.
My old Suzuki had seals in its "full floater" suspension that would allow fine dust to pack in and eventually cause horrible screeching noises that could be heard above the engine and from a great distance. People actually turned and looked. It was an annual dismantle, clean and repack after that.
  • Like
Reactions: 1
Yes, no one fills a bearing with neversieze. On the older bike, K1200RS, the lower front bolt for the shock would start to squeak, it needed Optomoly TA every so often. The bolt shaft is the pivot for the lower shock bushing. There are a couple of these points in the front wheel carrier of the K12/13S bikes attachment bolts. There are so many maintenance items that just are not on the schedule.
Guys… should this bearing and dust cover be like this or should it be centred?
This is in the shock at the lower end where it connects to the failed linkage!

Attachments

See less See more
Looks to me like it has been forced upwards ^
Hand Cigar Gesture Finger Thumb
This is the centre of the bearings, and you can see the needle roller bearing marks embedded into the Steele, where is rusted in
See less See more
Guys… should this bearing and dust cover be like this or should it be centred?
This is in the shock at the lower end where it connects to the failed linkage!
Bearing failed. Amazing what fine road dust does.
View attachment 33920 This is the centre of the bearings, and you can see the needle roller bearing marks embedded into the Steele, where is rusted in
View attachment 33920 This is the centre of the bearings, and you can see the needle roller bearing marks embedded into the Steele, where is rusted in
Holy hell did the PO drive in surf?
You have a problem there. A suspension shop should be able to supply parts. A large job to remove. The factory says it can come out the bottom. looks like you have it out already. good job.

Attachments

1 - 20 of 50 Posts
Top