Sorry to resurrect this thread, but a couple of questions for Bianchi 10 and RunningDoc. You both use angle iron or metal tracks in areas where the wheels are. How do you decide the travel range and hence the required length of these tracks? Looks like a disaster if you somehow greatly exagerrated the rollers movement. I guess this relates to the required lengths of the bungee cords as well. Those reflector brackets; you find them strong enough to prevent bending when the front wheel happens to contact them?

I too would want to include my Kreitler Killer headwind fan. I am leaning towards a separate subframe that my Kreitler Rollers together with the connected Killer Headwind would all mount on. Of course this subframe carriage will have to be extra long to accommodate both and will more than six rollerblade wheels for support. With the wooden subframe carriage, I will just be dropping my Kreitler rollers with headwind into them as is.