Hi, Will be getting a 400 as soon as they arrive here in the mid-west and was wondering how they perform in the mountains of the great west. Has anyone driven a 400 from Denver to Vail? That should be a good test! I have a 2001 Helix now and i love it ,but it's no highway bike. Don't want to take a trip to colorado and only do 45 to 50 mph up the mountains. Thanks for any info.