Pannier Bracket Bolt Broke - Page 6 - Ducati Supersport 939 Forum
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post #51 of 96 (permalink) Old 10-11-2019, 07:27 PM Thread Starter
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I can't go along with the bad installation idea. This is supposed to be a customer DIY thing. So the implication is idiot proof. And should bolt off and on.

So far as stainless fasteners. I was trying to get them off my bike and replace them with 12.9 quality when the rack fell off. You can get high quality 12.9 at Lowe's for a buck a pair.

The loctite was on the big bolts (maybe I should upgrade those to 12.9?) that attach to broken fasteners ("special screws"). I have no idea whether the red Loctite was installed on the fasteners that are broken, since they haven't been removed.

Hope this clarifies.

I write this because it's a notice to check your saddlebag racks.
Cool, its great to have helpful discussion about these things...agree, everyone should inspect their brackets!

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post #52 of 96 (permalink) Old 10-12-2019, 05:19 AM
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Interesting. What brand of saddle bag?
These saddlebags


and their frames from Ducati.


I got them from another dealer saving over £100 on them.
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post #53 of 96 (permalink) Old 10-12-2019, 05:33 AM
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...I will try to bend my right connecting frame bracket, and re-install stainless OEM standard size screws and monitor it. Will also check if load bearing bolts are proper torque...
Be wary of simply replacing the OEM bolts with stainless. There are different grades of stainless although probably all of them are are stronger than mild steel. You'd would be better to use A4-70 or better A4-80 than an A2 grade
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post #54 of 96 (permalink) Old 10-12-2019, 01:35 PM
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There are several issues: strength of the fasteners, the alignment of the pieces, weight and vibration.

So far we've seen several sheared fasteners, laterally and load bearing. The load bearing ones are unique and can't be replaced with common ones as far as I know. I was replacing my bolts with 12.9 grade metric.

John L

Ducs quack at midnight and 9am

Last edited by LowRyter; 10-12-2019 at 01:42 PM.
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post #55 of 96 (permalink) Old 10-12-2019, 05:24 PM
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What is the length of the replacement 12.9 screws? I found a place to order them on line. Fastenall

https://www.fastenal.com/product/fas...regation=Grade

Mark Craige
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post #56 of 96 (permalink) Old 10-12-2019, 09:53 PM
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What is the length of the replacement 12.9 screws? I found a place to order them on line. Fastenall

https://www.fastenal.com/product/fas...regation=Grade
Pretty sure youíll have a local office as well, Tulsa is a big enough city fur at least one.

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post #57 of 96 (permalink) Old 10-13-2019, 12:19 AM
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What is the length of the replacement 12.9 screws? I found a place to order them on line. Fastenall

https://www.fastenal.com/product/fas...regation=Grade
Marc, Lowes carries 12.9 grade bolts. M6 x 18 have sheared mentioned here (that listed size might be too short). The long ones are 8 x 45. And the ones on the pegs are stainless M8 x 25. I usually remove my bolts and match them at the store for size, length and pitch.

In my case the peculiar ones attaching to the seat frame sheared. I have to get them from Ducati.

I've never had luck from Fastenal. I get most of my bolts from Ace but they didn't have 12.9 grade on my last visit.

John L

Ducs quack at midnight and 9am

Last edited by LowRyter; 10-13-2019 at 12:23 AM.
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post #58 of 96 (permalink) Old 10-13-2019, 02:59 PM
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Yes, we do have a local Fastenal store in Tulsa, about a mile from my house. Thanks Miweber929.

Mark Craige
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post #59 of 96 (permalink) Old 10-13-2019, 05:00 PM Thread Starter
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Be wary of simply replacing the OEM bolts with stainless. There are different grades of stainless although probably all of them are are stronger than mild steel. You'd would be better to use A4-70 or better A4-80 than an A2 grade
Thanks. The screws Iím referencing above are the screws that connect the frame pieces (not the load bearing bolts that will remain OEM). The replacement stainless ones I used are A2.

Iím aware that A4 is more corrosion resistant, but is it also stronger than A2?

Either way, the pannier frame is not aligned properly, and appears to be causing shearing stress, and Iíll bend it, and reassemble.

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post #60 of 96 (permalink) Old 10-13-2019, 07:58 PM Thread Starter
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These saddlebags


and their frames from Ducati.


I got them from another dealer saving over £100 on them.
Iím using the SW-MoTech Legend for the Scrambler, and have been very satisfied with the bags and stout frame.

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