I've got the same as Jiauka.

I had touratech zega's on the BMW, they weren't handy to put on the bike.
You have to open the case and than turn 2 discs to get them of.

The trax cases can be put on without opening.

the only thing i dislike is that you always have to lock them, you can close it without locking it.

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Derbi Senda DRD Sm "04 (black) => BMW F650GS "04 (yellow) => Yamaha xt660z T�n�r� "09 (blue)