New fork deflector prototype tested - Victory Forums - Victory Motorcycle Forum
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post #1 of 22 (permalink) Old 02-22-2017, 03:05 AM Thread Starter
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Default New fork deflector prototype tested

Design element tested was the addition of integrated driving lights. These are a simple design and unpainted. Lights are mounted on back of deflectors. Racked up 16 hours of riding to Mardi Gras and back. Conditions included dry night and day, light rain night and day, heavy rain night, and brief night fog. Driver behavior appeared to indicate improved recognition vs typical for me (suede titanium XC). Setup adheres to Alabama motorcycle lighting laws.

Consider the concept of integrated driving light testing as passed. Here are some pics.

1 hr 10 min before sunset, 45 degree view, with high beam:


1hr 10 min before sunset, front view, with high beam:


Night, up close, with high beam:


Night with high beam 2x distance:


Night, almost 90 degree view, with high beam:


Lights off:


Side/Rear view:


Rear View:

Last edited by Diamond Jim; 02-22-2017 at 03:10 AM.
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post #2 of 22 (permalink) Old 02-22-2017, 05:23 AM
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@Diamond Jim Yet again, you blow me away with your designs and concepts.
Obviously these greatly increase the bike's visibility to others....You didn't mention anything about the rider's night view with the extra lighting or since you did call these a "fork deflector"...any changes to buffeting, steering or handing. thx
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post #3 of 22 (permalink) Old 02-22-2017, 07:04 AM
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Very impressve

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I just plan on doing everything twice when I start it and that way when it takes 3 times to get it right I'm only half as mad.
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post #4 of 22 (permalink) Old 02-22-2017, 07:17 AM
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Very creative, very classy.

On-coming drivers still able to see your turn signals?

Cheers,

Bill P.

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post #5 of 22 (permalink) Old 02-22-2017, 07:38 AM
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Well done.

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post #6 of 22 (permalink) Old 02-22-2017, 08:45 AM
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As Boss Nass would say:
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post #7 of 22 (permalink) Old 02-22-2017, 09:20 AM
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@broggyr No. Gungans. Ever.
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post #8 of 22 (permalink) Old 02-22-2017, 10:00 AM Thread Starter
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Around Nov 2015 my philosophy for solving my XC buffeting issues evolved from the traditional thought of more vertical surface area at the forks to deflect airflow to less, decreasing drag, then affecting pressure more horizontally, or with the flow, in key spots to control the eye jiggling. The center fork deflector, tank wings, and my preference for mid-size fork deflectors are some results of this philosophy. The XC fairing is quite different, aerodynamically, than any other fairing, ever. It's a blessing and a curse. It's awesome in that it focuses the airflow energy to a narrower region vs other fairings, making the upper half more aerodynamically efficient. The trade-off, though, is that this energy is focused at the bottom and generates significantly more helmet buffeting vs other fairings. A ton of research must have went into the hard lowers to help remedy this effect.

Been designing the fork deflectors for about a year. Work on it when I get time. Here are some of the other designs I've played with.



One deflector project was to see if the side-effects of fork deflectors could be minimized. Fork deflectors typically generate about as much turbulence as they do buffeting improvement. The key has been to get as much of that turbulence past the bubble of air the rider sits in. That deflector project resulted what I call the Pressure Pocket deflectors. There are currently 3 sets of these in beta testing since early November. Here's pics of two of them.



They reduce top-edge turbulence by reducing pressure before it reaches the top. Diverts some pressure downward, some outward, remainder flows across the top edge. As air molecules compress in the Pocket, they begin to build a pressure ramp for top flow. Sort of using pressure for benefit. Faster you go the better they work. Now, this is about 80% confirmed, remaining 20% theory and a little educated guessing. If you're thinking this is simply overkill for fork deflectors, I certainly won't disagree.



I do like how they perform and the knowledge gained in the R&D of these is priceless.

Here's an example of how most of these designs install. This vid is from when I was experimenting with a single elevator bolt for retention. Design has since evolved. The ones with the lights and tested during the Mardi Gras trip, are like most past designs in that they use no mounting hardware. Excuse the vid quality. It's a compressed snippet of a previously compressed video---- https://youtu.be/vqAF2SFyPoU
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post #9 of 22 (permalink) Old 02-22-2017, 10:03 AM
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Quote:
Originally Posted by wspollack View Post
Very creative, very classy.

On-coming drivers still able to see your turn signals?
They are cool but this is a big deal right here.

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post #10 of 22 (permalink) Old 02-22-2017, 12:41 PM Thread Starter
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Quote:
Originally Posted by vindex1963 View Post
They are cool but this is a big deal right here.
It's very possible that in low to no ambient light conditions the deflectors wash out the turns. Placement position, angle change or even a hood may remedy this. Ultimately, having the deflectors function as turns signals would be the most effective for any lighting condition. Have similar lights with integrated turn that arrived when I was on my trip. Will evaluate them.
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