Windshield Backpressure (pushing me forward when fully raised)

[RCook]

I searched but couldn't find any suggestions to remedy the problem.

I'm 6'3" post chiropractor and have a CeeBailey +4 tall, +2 wide screen. When I put the screen fully up I'm pushed forward by what I assume is a low pressure pocket being created by the shield. This has the knock on effect of making me have to push back with my arms/hands and leads to fatigue. Obviously when I lower the screen I have more direct air pushing me back / holding me up so my arms work less. I'm looking for solutions.

I've considered that the screen isn't tall enough and maybe I need to get a taller screen? Also it seems that if I could somehow position the seat so that the front was higher than the back causing my hips to rotate backwards and put me into a seating position that was more laid back I might not have to use my arms so much?

Anyone have some ideas?

Thanks,

RCook

 

[Ignacio]

Talked about here and other places when searching on +windshield +back +pressure.

 

[flyingz06]

I searched but couldn't find any suggestions to remedy the problem.
I'm 6'3" post chiropractor and have a CeeBailey +4 tall, +2 wide screen. When I put the screen fully up I'm pushed forward by what I assume is a low pressure pocket being created by the shield. This has the knock on effect of making me have to push back with my arms/hands and leads to fatigue. Obviously when I lower the screen I have more direct air pushing me back / holding me up so my arms work less. I'm looking for solutions.

I've considered that the screen isn't tall enough and maybe I need to get a taller screen? Also it seems that if I could somehow position the seat so that the front was higher than the back causing my hips to rotate backwards and put me into a seating position that was more laid back I might not have to use my arms so much?

Anyone have some ideas?

Thanks,

RCook

airhawk for the seat

 

[RadioHowie]

airhawk for the seat

[SIZE=12pt]?????[/SIZE]
Ain't that gonna hurt

?????

 

[Yambone]

Man, it seems like a screen that tall would do it for you.

I'm only 5-10 and have a gen I bike, so can't speak zactly what you are facing. But my solutions, which all work together:

Rifle touring screen, which I think is a +4+4. Lenkadapter risers: 3/4-inch higher and also narrower. Surgery to stock seat to slightly lower and eliminate forward lean. Net result is more wind protection and pretty much full upright postion.

As you read thru other solutions, you find every rider different and opinions run wild. Good luck on your own personal quest. B)

 

[SkooterG]

Not really any solution here. Yes, the windscreen creates a big pocket of low pressure. No way around it. The bigger the screen, the bigger the low pressure area. This is one of the major reasons I ride with my Rifle screen (w/tuning block) closer to the down position - to get some air hitting me and 'holding me up', so I don't have a lot of pressure on the handlebars.

That said, I did once ride another FJR that had one of the Corbin seats that placed me lower than the stock seat, and right up against the tank. (My custom seats have me sitting far back as I prefer) Sitting in that position, my back was pretty vertical and so even with the big screen on that bike the low pressure zone didn't cause wrist pressure issues. I was totally, and comfortably in the quiet zone.

However, sitting next to the tank can get warm, and for me is somewhat uncomfortable. And it that combo provided less leg room. I couldn't do that position long term. And I don't see how somebody your height would be able to pull it off either.

IMHO, you need to keep the screen lower to get some air hitting you to offset the low pressure pull.

That, and learn the Master Yoda Riding Position which will help use your core (ab) muscles to hold you up.

 

[FJReady]

CalSci vented w/s and Master Yoda is a winning combination for me. Then again I haven't ridden with w/s fully raised. No need to with the CalSci XL I use. YMMV

 

[El Cajone]

I also have the CalSci XL. It has a 5" slot cut out of the lower part of the screen which allows enough air to come in to the rider's "pocket" that I don't have any issues with back pressure.

 

[RCook]

Thanks for all the information. Sounds like my best move would be to attend a get together and try our various screens, then move on to possibly modding the seat. The weather should finally break here tomorrow so I'm hoping that I'll get some seat time and a chance to try various things out.

 

[650cent]

You could try cutting holes in your windshield. Worked for me, I have very little back pressure now when the screen is in the full up position. https://www.fjrforum.com/forum/lofiversion/...hp/t7434-0.html

Bill

 

[phil]

Keep in mind that when you lower the w/s even slightly, not only the height changes, but also the angle of attack. I have a standard-curve C. Bailey +2+6, and get no back pressure. At full-up the top of windshield is about at my nose. Keep trying. B)

 

[RCook]

You could try cutting holes in your windshield. Worked for me, I have very little back pressure now when the screen is in the full up position. https://www.fjrforum.com/forum/lofiversion/...hp/t7434-0.html
Bill

That looks very interesting. I went to the CalSci website and noticed that they have different cutouts based on model year. You think it matters which hole pattern to copy? I have an '07 so if I were to mimic the CalSci it would be one 'v' shaped vent as opposed to the 2 square-ish holes you made. The vent is very similar to what my Bandit had and I suppose that was for the same purpose, to reduce the backpressure.

 

[650cent]

You could try cutting holes in your windshield. Worked for me, I have very little back pressure now when the screen is in the full up position. https://www.fjrforum.com/forum/lofiversion/...hp/t7434-0.html
Bill

That looks very interesting. I went to the CalSci website and noticed that they have different cutouts based on model year. You think it matters which hole pattern to copy? I have an '07 so if I were to mimic the CalSci it would be one 'v' shaped vent as opposed to the 2 square-ish holes you made. The vent is very similar to what my Bandit had and I suppose that was for the same purpose, to reduce the backpressure.

Don't the Gen.II have a V shaped hole? I would just copy that. Either shape would work, just use a template. If you go with the V shape, fold a piece of paper in half and cut out the half the shape then unfold. Some people have used a holesaw but I am not to keen on the way a holesaw make the hole or the look.

 

[maddad]

Although I don't question the low pressure, with the V-Stream, I'm also seeing/feeling the wind pushing at my back when the screen is up. In colder weather with screen down, I don't feel any wind at my back. With the screen up, there is a noticable increase cold air blowing against my back to the point of lower the screen to avoid it.

 

[carlson_mn]

Add some washers to make a spacer to lift the windshield mount up from the arm mechanism. Easy to do on a GenI not sure about GenII's. This will let a lot more air come under the shield to fill in that low pressure, and it also tilts the windshield down a bit so it isn't such a barn door against the wind.... creating less back pressure and less buffeting.

Made my VStream very comfortable in the up position, although I do prefer low and mid positions because I like the air pressure. I also have the dust option I noticed after looking at the pics!

 

[Anthony]

Post # 5 https://www.fjrforum.com/forum/index.php?showtopic=117601

 

[RCook]

The Skyway spacers look like a better option than cutting on the windshield, less permanent for sure. I think I'll look into either rolling my own or dropping the $24 for the Skyway's.

Also I ended up checking my handlebar position, it was in the furthest forward setting. I moved it back to the rear most setting, with the bars closer my arms aren't locked straight anymore, I have a bend at the elbow now so I'm hoping that this will also help with comfort as well.

Having read the linked thread(s) about the Skyway spacers was it determined that the rubbing issue was due to improper installation or the spacers, I can't see how the spacers would cause the damage in the threads so I have to assume improper install?

Thanks,

RCook

 

[DiasDePlaya]

I searched but couldn't find any suggestions to remedy the problem.

Really is not a problem: When raining you don't get wet. When is not raining just raise the windshield to the point where the front and back pressure are equal.

 

[Grumpy]

I just added this to a Cee Bailey +2 +4 and am suprised at how well it works.

Rifle Winshield Vent