All the one Rex 125 ( RS 1000 ) driving, and he thought he could drive 100, to be told; Is ́not ! Max. speed 79 KM/H Who really thinks to buy a new CDI on the Internet( I was once so stupid!) does not do himself a favor, because, some do not work at all !! I had bought a CDI, was exactly described in the catalog, but it did not work ! Look after several times back and forth, in and up Old /New, not . The old funtioned, the new This REX 125 / RS 1000 is throttled and, as some others have already said, thought more or less in the city area. There he is good at it and it is fun, But as soon as a Landstr, or a four-lane train comes where 80 or 100 are allowed, Uff, fear, one heavy truck after the other,,,,,..!!! I hate it! I also wanted to drive BAB, but with 78 KM/H, laughing and fire dangerous. Greetings to God Jürgen