I was reading somewhere in a lot of the major European countries that if your bike wasn't above a certain year, newer model, meaning you did not meet emission standards you are required to have a special permit to ride at certain times in certain areas. I'm sure this is in effect. This is another scheme to get the oldies off the road or minimize the numbers of them. It's almost to the point anyway that anyone who owns an old bike has to be a machinist as you can't get certain parts for them anymore. I'm talking critical parts not shims and bolts. I went to a Yamaha shop here in canada some time back asking if they'd rebuild my bottom end of my xs650 and the two guys behind the counter said it's too cost prohibitive so throw it out. Its this attitude that makes owning and operating an old bike more and more difficult.