V7 OEM crash bar vibration issue

[TimmyTheHog]

After reading this series of posts, I ordered and installed the OEM crash bars on a 2014 V7 Stone. They vibrated at some rpms - not as badly as reported by Elkrichard but enough to be quite noticeable. Then I added 2 mm thick rubber washers on both sides of the upper crash bar. In order to allow the bar to "work" a bit against the rubber washers, I didn't torque the upper mounting bolts very tightly, trusting loc tight to hold them in place. I also put dabs of red paint on the bolts so it would be immediately apparent if the bolts started to loosen.

The result was about a 2/3 reduction in crash bar vibration.

I hope someone else can benefit from my experience.

Pictures of the upper mounting bolt, rubber washers, metal washer and spacer as well as the crash bar as installed are attached.View attachment 15442 View attachment 15443

Thanks for the photo update!

is the OEM crashbar one full bar or two separated one?

 

[Steve1087]

I fitted the Hepco and Becker crash bar to my V7ii. It seems to be a good design in that the top support bracket has 4 mounting bolts. 2 go behind the finned electric snurgly (forget its name) at the front of the frame and 2 at the sides where the horn mounting bolts are. This hugs the top of the frame. The actual bars are two separate pieces which bolt to the top support and the lower engine mounting point.
I've not noticed any additional vibrations when riding although when you touch the bars they do vibrate but not to excess.

 

[straycat]

In reply to TimmyTheHog, the OEM crash bar is 1 piece .

 

[dududuckling]

Any consensus/recommendation on this issue? I would like to purchase some form of crash protection (for v3), but not crazy about the idea of vibration/possible frame damage. Between OEM and Agostini, which do you think is better in this regard? From what I can tell from the tiny photos, it looks like the Agostini are maybe a little more robust with the extra top connection plate and bottom tube? From an aesthetic perspective they look about the same? — OEM might be a little cleaner looking. Don’t really like any of the other aftermarket guards. Also open to the Sato frame slider/valve cover guard route.

Having laid down my v11 sport a couple times with just the small valve cover guard plates for protection — and other than replacing the guard plate, mirrors, etc, no real engine/frame damage — so even moderate protection I would feel pretty comfortable with.

Also, just curious, do the raised plastic spark plug covers on the v3 offer any drop protection at all?

I didn't read all the post, but I got the Agostini crash bar on the V7III from Todd. No vibration as far as I can tell and it definitely did the job.

 

[grame]

I had the Agostinis installed on my V7iii. They were weirdly offset with one bar being much closer than the other to the head. But Agostini say this is intentional...

 

[Vagrant]

I'm sure they were square to the frame and bike. They just are made that way because one cylinder is set back farther for the crankshaft offset.

 

[grame]

I'm sure they were square to the frame and bike. They just are made that way because one cylinder is set back farther for the crankshaft offset.

The weird thing is the offset is nearer to the more forward cylinder - you would expect the opposite!

 

[DK-V7classic]

These are the best in my opinion.

renntec.com/moto-guzzi-v7-classic-engine-bars-in-black.html