Penny-tech shorty screen - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 17 Old 02-27-2010, 02:27 AM Thread Starter
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Penny-tech shorty screen

Did this while cooking dinner last night, so it's a bit rough, but drops the standard screen, hard mounts it against the fairing and uses all the bits without altering anything so it is reversible.

I had a piece of alloy 3/4" bar so a couple of holes and a few bends later and it's done. I used a couple of pieces of hard plastic to screw the cover strips into (bore the hole and turn the screw in and out a few times to make the thread) and hold it in place with some heavy duty tape. I didn't have any black so used some black duct tape to cover the silver cloth tape to make it a bit less noticeable. The green strips are 3M double sided tape to hold the bottom of the screen on the fairing. The stuff I had is too thin - needs to be the heavy duty 2-3mm type, so after it was all back together I removed the cover strips and ran some black duct tape around the bottom of the screen as well until I can get the proper ds tape.

Pics are of the rough alloy knock up prior to finishing and painting and the various bits and pieces. The rubber screen mount is taken from the bottom of the existing bracket and the fairing bolt is also one of the original screen bolts with a washer to take up the slack. All up about 30 minutes using very basic tools.

Haven't had it out on the highway but around town it is breezy but clean air and I am expecting it to give a good airflow at speed.








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post #2 of 17 Old 02-27-2010, 02:42 AM
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Very creative! Be sure to let us know how it is at speed. Am I understanding correctly that you now only have two screws holding the screen to the bike? If so, I would worry about how well that will hold up at higher speeds. Also, you still have that flip at the top that Suzuki never should have cursed us with. Every shorty screen out there, even Suzuki's own, does away with the flip. It's just plain bad design and contributes mightily to turbulence and buffeting.

Last edited by Warhammer; 02-27-2010 at 02:45 AM.
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post #3 of 17 Old 02-27-2010, 02:51 AM
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Great idea! I am very interested to see the ride report after you put some miles on it with that configuration. I have the stock shield with the Madstad and although it is much better than factory I still experience some buffeting.
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post #4 of 17 Old 02-27-2010, 02:55 AM Thread Starter
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The mount is surprisingly solid plus 3M tape is very strong and air pressure will press the screen down onto the body but if it does get frisky at speed I'll put a second mounting bracket under where the cover strip screws in. The duct tape is there for the moment just in case. Almost did it last night but figured I'd give it a go as it was to see if it was necessary. The flipup doesn't worry me much as I've had bikes with similar upright screen tops and they've worked OK. I've ridden faired bikes for years and to me the real problem with the screen is that it is too far from the rider and too narrow and upright so the air boils back around the edges. I also don't like the gap around the screen though it is probably for low pressure relief. I'll see how it goes gapless.
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post #5 of 17 Old 02-27-2010, 03:03 AM Thread Starter
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I should mention that the tape is the stuff used to stick those side weather shields on car front door windows. I've never had one of them pull off in all the years I've used them and I do a lot of long distance driving. Lipped screens I've had that were OK were the CX500 Turbo, CB900FA and a BMW K100RS touring screen. All of those were much closer to the rider though.

I'm making a quick release mounting for soft luggage on the OEM 650 rack tonight. Love the 650 - makes me want to get to it with the oxy torch and hacksaw...

Last edited by scrivens; 02-27-2010 at 03:05 AM.
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post #6 of 17 Old 02-27-2010, 10:04 AM
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[QUOTE=scrivens;523501]I should mention that the tape is the stuff used to stick those side weather shields on car front door windows. I've never had one of them pull off in all the years I've used them and I do a lot of long distance driving...QUOTE]

I didn't read your original post closely enough... my bad. I use that 3M tape all the time and it's really good stuff. I thought you only had the two brackets at the top holding the screen on.

I agree with you about the screen being too far away. That's why I like the new "Perfect Strom" from Cee Bailey. It curves back like closer to the rider, more like the screen on an FJR or Connie. However, I still haven't gotten around to actually buying one. I made a DYI shorty by chopping the flip off the top of my OEM screen and I'm really happy with it. Unfortunately, my OEM bracket broke in a slide throouhg the mud and the black screw covers will no longer stay secured, so it looke a bit unfinished.
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post #7 of 17 Old 02-28-2010, 11:17 PM Thread Starter
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Well I still haven't had a chance to get on the highway for high speed testing but today there is a strong ESE wind and it is gusting around 50-60kmh in short sharp bursts and the bike is as stable as anything of similar weight I have ridden. No flighty front end, no feeling like a big sail about to go sideways, solid as a rock. I think that may be from hard-mounting the screen to the fairing rather than the relatively small drop in height. I suspect the wind gets under the screen edges in the normal setup and acts a bit like an aerofoil.

(I also have rather narrower bars than standard. When I bought the bike I cut about 1 1/2" off either end and removed about 1 1/4" from the middle then sleeved and welded the join. Also removed the bar end weights and have not had any change in vibration etc. They are around 26" wide now. I'm used to narrow bars even on dirt.)

Last edited by scrivens; 02-28-2010 at 11:24 PM.
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post #8 of 17 Old 03-01-2010, 01:11 AM Thread Starter
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Here's something else I just knocked up to cover those ragged holes in the front of the fairing. As far as I can see they aren't there for any purpose other than to allow access to a bolt. They may have something to do with air flow for cooling etc, so I'll keep an eye on the temps. This stops the blast of air coming up through the vents on the top side of the tank and from the triple-tree area. They are made from flashing alloy sheet - very thin - and covered and held in place with duct tape at present. If they look like a worthwhile addition I'll make a heavier set with proper mounting. (The duct tape I use is top quality gear, not Chinese cheap and it grips extraordinarily well.)


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post #9 of 17 Old 03-03-2010, 02:35 AM Thread Starter
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Quote:
Originally Posted by Warhammer View Post
Also, you still have that flip at the top that Suzuki never should have cursed us with. Every shorty screen out there, even Suzuki's own, does away with the flip. It's just plain bad design and contributes mightily to turbulence and buffeting.
Yep, the flip looks like the culprit - it is still noisy at speed, though not as much as the standard screen. Hard mounting the screen (ie, without a gap between the fairing and the screen) does have a marked effect on stability in choppy winds. Been very gusty here this week and even at 130kmh the bike was stable. Filling in those cutouts at the front helps as well. However the wind noise is still bad with the dropped screen.

After riding around with no screen for a day or so I got an old open face helmet faceshield, cut it to shape and put it on the bike with the OEM mounts and it was great. No unexpected noise - and no real protection, but just enough to get the force of the wind off the chest at speed without acting like a sail. I've just made up a real one from 2mm plastic sheet and will give that a go for a few days.






I have enough sheet to make a large screen or two, so over the next couple of weeks I'll have a bit of a play with larger flush-mounted screens. This one will do for the moment though.
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post #10 of 17 Old 03-03-2010, 09:03 AM
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Part Quote from scrivens: "I've ridden faired bikes for years and to me the real problem with the screen is that it is too far from the rider."
Problem solved. I did it my way At 6'2" I have Zero buffeting. Also note that the whole shield can be removed in 5 min. and you are left with the ultimate shorty shield (an older model Laminar Lip, which is just Velcro fastened to the fairing)

ADVENTURE, like beauty, is in the eye of the beholder.
The destination, can be the journey! Honest Bob

Last edited by honest bob; 03-03-2010 at 09:06 AM. Reason: added text
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