A general cycling question:

I will be vacationing in Switzerland soon and am comtemplating bringing a bike. I have read that the Swiss require a license for the bike, fenders, mudguards, reflectors, etc. I can see the license, but I don't want to adorn my road bike with the other items. Is there allowance made for tourists?

I will be staying in Interlaken, Chur, and Zurich? Any route suggestions for day trips? I have always wanted to ride from Interlaken to Lucern over the Brunig pass, but have heard horror stories about the truck traffic.

Thanks for the help.