Sorting out the air flow around a bike seems to be part art, part science, and part luck. Even the helmet you wear or how you hold your knees makes a difference; early threads discussed the effects of headlight visors on rider comfort.
I went through the whole process. Started with the Roadster screen - found that a train wreck. Then bought the oversize (18 inch) Clearview screen, but still saw double. Probably the biggest change for me was adding lowers. The contradiction with lowers though, is that it stops the "tank air" that comes up from below the screen, but the tank air pushes the top of the bubble that I sit in higher. Adding the lowers stops the tank air, which is
very nice, but the air from the top of the screen drops a lot.
I thought the Laminar Lip would help this, and ran it for a while. It didn't help much at all, in fact for me I found that the air from the top of the screen was more turbulent with the extra stuff stuck to the top of the screen, and tossed my head around a bit more. The Laminar Lip folks say that the laminar effect works best on screens that are 45 degrees, so I pushed the botton of the Clearview out 3 inches with some extra brackets. This helped some, but not enought to justify the exta work and the goofy look with the lower part of the Clearview out past the headlight bucket. Also cleaning the bugs from behind it is a real pain. I would have to pack a chopstick with the screen cleaner to push a rag up in there.
The best results that I find now is to have the Clearview screen in its normal position on the Triumph brackets, and the lowers that I've built. I still get very minor thumping from dirty air behind my helmet. It's manageable, and still lets me do the 2300 km long weekend rides.
This winter I want to play with a Slipstreamer SS32. Ray Birch (birchr) has been happy with it, and I like the idea that it covers my hands on the cold mornings.
All of this hasn't been to dampen your enthusiasm - it's a pretty interesting product, and I was hoping that it would have worked as well for me as it has for you. It would be interesting to hear what you have to say after you add lowers to your setup.
