Author Topic: Rifle windshield Q  (Read 1169 times)

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Offline wild man

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Rifle windshield Q
« on: May 20, 2012, 08:15:45 pm »
I bought this unit many years ago second hand ebay in near new condition.  I noticed the bolts and nut provided were both plastic.  Well, the other day I was mounting some accessories in prep for a big trip and I managed to drop a small tool and break one of the plastic bolts.

So my question is is there any "safety" reason to use plastic bolts in this area or is metal fine.  I happen to have a quite a few extra Murph SS fasteners that would look cool in this area, plus being rubber backed I think they would be less likely to spider crack the windshield

Inputs appreciated as always   
Bill
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2003 Connie Constance 125K and counting
2007 KLR 650, 1997 ATK 605

Offline danodemotoman

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Re: Rifle windshield Q
« Reply #1 on: May 20, 2012, 08:30:50 pm »
 I have used 3/4 steel washers with a rubber washer interface with the s/s bolts as to head off spider cracking around the mount holes and after several years this has worked fine.
 The plastic bolts are IMO a legal liability thing the mfg does in case the w's breaks leaving a sharp/jagged edge and the plastic bolts break off or 'should' allowing the w/s to drop away. I use the 'megashield' (larger, taller more wide, thicker version on the Rifle) to replace the original that did break in a low speed drop but the plastic bolts did not break off.

I bought this unit many years ago second hand ebay in near new condition.  I noticed the bolts and nut provided were both plastic.  Well, the other day I was mounting some accessories in prep for a big trip and I managed to drop a small tool and break one of the plastic bolts.

So my question is is there any "safety" reason to use plastic bolts in this area or is metal fine.  I happen to have a quite a few extra Murph SS fasteners that would look cool in this area, plus being rubber backed I think they would be less likely to spider crack the windshield

Inputs appreciated as always

Offline F-106

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Re: Rifle windshield Q
« Reply #2 on: May 21, 2012, 03:47:36 am »
I too had a few extra fom the kit I used on the shield don't overtighten them and I think you will be fine.

Offline wild man

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Re: Rifle windshield Q
« Reply #3 on: May 21, 2012, 12:39:40 pm »
Sounds like what I'll do..

Thanks guys
Bill
USAF Ret, KC0IGL
AMA#333772, IBA#19247
2003 Connie Constance 125K and counting
2007 KLR 650, 1997 ATK 605

Offline Victor Salisbury

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Re: Rifle windshield Q
« Reply #4 on: May 21, 2012, 12:49:36 pm »
There's been speculation the screws are plastic for "breakaway" safety. I personally think it is for weight, aesthetics, maybe even cost? but who knows.  Plus withthe plastic screws, you would get an 87% increase in aerodynamic flow over the motorcycle. :)

Star cracking is from overtightening whatever hardware is used.  My first Rifle I bought lasted 5+ years, over 50k of all kinds of miles, no star cracking.  I would tighten down the screw, while looking at the screw from the side and watch for the shield to bow-in, once that happens, back the screw off ever so slightly until the bow-in is gone, leave it alone. Yeah, you might be able to wiggle the screen if you grabbed it and tried, but after a couple of heat cycles, the foam between the base and shield would "bond".

YMMV
« Last Edit: May 21, 2012, 12:53:22 pm by Victor Salisbury »
Vic Salisbury
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Stupid Hurts! Wearing protective gear is much more comfortable.

Offline Lane

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Re: Rifle windshield Q
« Reply #5 on: May 22, 2012, 05:18:30 pm »
7th summer of riding with the rifle, just under 65,000km no cracking whatsoever.  Still using original plastic bolts but I only hand tighten them (no tools).  As mentioned cracking comes from over tightening not the type of bolt being used.