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Author Topic: OMG - Windshield flips over at 160 km/h  (Read 349 times)

scorpion32

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OMG - Windshield flips over at 160 km/h
« on: February 17, 2017, 08:05:05 PM »

Hi all,
yesterday i was back on my trip home. The last distance is a 15km ride on the Autobahn / Highway.
This is the time when i push the DSR to the limit and drive faster than usual. The dash reads 160 km/h.  8)

I always try to expect the unexpected if driving so fast:
- other cars moving in my way without using turn signal
- dirt or gravel on the street
- icy surfaces
- cars that might overtake from the wrong side of the road (in germany we have law that you only can overtake on the left side)

But then something happened i was not expecting.....my windshield just flipped over down to the charge tank. It was still connected, but i guess the wind driving pressure was too much for it. Suddenly i had all the wind on my chest and i was really surprised by the amount of wind at that speed. It takes 1-2 seconds until i realized what just had happened. During this time period i guess i was completely distracted from the traffic situation in front of me.

Lucky me i was not in between a lane shift or similar. Then this could really ruin my day. :(

The windshield came initially preinstalled with the DSR Anniversary Edition, so i never checked how tight it was connected. I will now re-check every single screw on that bike.

Why i post this message? Well, of course it´s impossible to expect the unexpected, but now as you are aware of what might happen to the windshield, probably this situation is more "expected" for you if you might get in the same situation.

Hopefully you never have this experience. And probably you should check if your windshield is still properly attached from time to time.

BR

« Last Edit: February 17, 2017, 08:12:35 PM by scorpion32 »
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dukecola

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Re: OMG - Windshield flips over at 160 km/h
« Reply #1 on: February 17, 2017, 10:35:14 PM »

Murphy's Law: If something is fastened with fasteners, they will come loose.  But thanks for posting, a good reminder for everyone to go thru the bike every once in a while and check tightness
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BrianTRice

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Re: OMG - Windshield flips over at 160 km/h
« Reply #2 on: February 18, 2017, 01:49:34 AM »

I've found that the MRA screens that Zero sells have stalks that are too low to mount around the center of pressure (CP) for the windshield, which is why this can happen.

One thing you can do is acquire a longer set of MRA stalks that go around the handlebars (they all match this mount) and change the angle of the mount to balance the windscreen forces better.

You can also try to brace the windscreen at a third point (or second pair of points) near the headlamp. A little metal bracket from the headlamp mount bolts up to the screen with a little clip or such might do the trick.

NOTE: If you drill through the windscreen to make a mount point, use drill bits meant for plastic so they won't catch and crack the plastic.

PS of course this'll be on the wiki...
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2016 Zero DSR, 2013 Zero DS, 2012 Suzuki DL-650 V-Strom Adv

BrianTRice

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2016 Zero DSR, 2013 Zero DS, 2012 Suzuki DL-650 V-Strom Adv

gyrocyclist

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Re: OMG - Windshield flips over at 160 km/h
« Reply #4 on: February 18, 2017, 05:26:35 AM »

Hi all,
yesterday i was back on my trip home. The last distance is a 15km ride on the Autobahn / Highway.
This is the time when i push the DSR to the limit and drive faster than usual. The dash reads 160 km/h.  8)

I came across this page a few weeks ago: https://calsci.com/ , emailed about the windshield
I currently have Zero touring screen) and asked if they had anything better (more shielding,
hopefully improved aerodynamics)

Excerpts from the company's reply:
"We have made a windshield for your bike and would be able to make another, however the mounting system that you have is not strong enough to hold a large shield without tipping backwards. I wouldn't be surprised if you have this issue already with your other windshield."

"Another option is a universal handlebar mount windshield that we are in the process of developing. "

Nice!

I think BrianTRice (or others) may have commented on this company previously ...

BTW, what sort of range do you get as 160?
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BrianTRice

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Re: OMG - Windshield flips over at 160 km/h
« Reply #5 on: February 18, 2017, 05:41:06 AM »

Hi all,
yesterday i was back on my trip home. The last distance is a 15km ride on the Autobahn / Highway.
This is the time when i push the DSR to the limit and drive faster than usual. The dash reads 160 km/h.  8)

I came across this page a few weeks ago: https://calsci.com/ , emailed about the windshield
I currently have Zero touring screen) and asked if they had anything better (more shielding,
hopefully improved aerodynamics)

Excerpts from the company's reply:
"We have made a windshield for your bike and would be able to make another, however the mounting system that you have is not strong enough to hold a large shield without tipping backwards. I wouldn't be surprised if you have this issue already with your other windshield."

"Another option is a universal handlebar mount windshield that we are in the process of developing. "

Nice!

I think BrianTRice (or others) may have commented on this company previously ...

I'm glad to hear they're working on a generic mount. I got in touch with them as well but ultimately with the winter weather and extreme schedule business, it was easier for me to buy a used CalSci windscreen on EBay, and mount it to my MRA stalks for use with my dustbin fairing.

The main thing is to estimate where the center of pressure is for the surface (kind of the center of the area so it matters where the screen is wider) and place the mounts directly behind that. So, I have those 11" MRA stalks from the handlebars to the screen (meant for a BMW R1200RT, which has a big fairing, so my mount was above the original holes) and it works pretty darn well and doesn't tilt into the wind at 85mph.
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clay.leihy

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Re: OMG - Windshield flips over at 160 km/h
« Reply #6 on: February 18, 2017, 11:59:14 AM »

My cheap Chinese shield hasn't moved a bit, with repeated rides on the interstate at 85 mph with Chinook winds.

2015 FX ZF6.5 👹 DoD #2160,6

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