You might prefer the Kaces KKP9KB. I know a number of us use that one for the Tyros. The Yamaha bag is really BIG, at least it was for the original Tyros.

The Kaces case will fit sideways even in a small car. I use some foam rubber on top of the keyboard also.
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Here's a thread that talks about it and mentions a few other ideas. http://www.synthzone.com/ubbs/Forum37/HTML/009891.html

Scott Langholff http://ScottLMusic.com