My TT ones also fitted like a glove.
I've been reading about all guards before buying them.

The yam ones aren't a good protection from the wind, they also make your bars a lot wider.
I couldn't have wider bars, because of the stupid path into our garden.

Some people say the TT ones have a lot of vibes, but i'm not having any trouble at all. My bike just drove 3080km's, so it will become a bit smoother.

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