BikeTech Page 3

Trevor Screen Release 2
After two of days driving I found the time to make a couple of improvements.

Top Mount Screws

These used to be composed of a screw and the wing nut. I replaced the screw by a bolt that locks into the bracket. This eliminates the need for a tool when adjusting the screen. The wing nut can be loosened by hand and adjusting the screen is a matter of seconds (but don't try this while driving). The special bolts will add the serious amount of $1 to the costs.

The Hinge

Now that the prototype worked out OK, it was time for some cosmetic changes. The unused holes were filled with polyester compound (left from an older car restore project) and spray-painted a couple of times with rust-protecting silver paint. The spray can cost $ 12, but this will be good for the next 100 hinges, of course. The picture was taken after one of those typical Dutch rainy summer days (and winter is worse). The paint was only one day old but held good.

More test results
In general, the adjustable screen with the hinge performs well. There was not yet time for an off-road drive, but it performed well on minor bumps like driving up the sidewalk. The only time when I could hear some noise from the hinge was when I drove full speed over some speed bumps.

I noticed that mounting the brackets on the 4th screw of the mould rather than on the 3rd, and the increased height of the screen in general because of the hinge, resulted in much more space on the inside of the screen. This allows me to put the wing nuts on the inside where they are less obtrusive than on the outside. The extra space also allows the screen to be adjusted downwards without the wing nuts hitting the top of the headlamp structure. They actually move over the stock screen.

One negative point needs to be noted: The higher screen takes a significant part of the wind away from the helmet. That's good, right? But it also means that raindrops will stay longer on your visor, since they are no longer immediately blown away by the wind. Now that the screen takes a larger part of your viewing area, raindrops on the screen will be more annoying as well. I consider both effects the consequences of luxury, but they need to be noted.

I have added a couple of shots below. Couldn't find a nice background, so this will have to do until I'm back from my vacation trip. The painted hinge starts blending in quite well with the stock screen. The wing nuts on the inside are virtually invisible.

Go to next page for final conclusions......