Size Guide on a Orbit Nova?

Could anyone help me with the size of this orbea? These are the informations that are given to me:

Seat tube (centre-to-centre): 43cm (plus 6cm extension)
Seat tube (centre-to-top): 49cm
Top tube (centre-to-centre): 48cm
Head tube: 9cm (top to bottom)
Rear dropout  OLN: 130mm
Front fork       OLN: 100mm
Takes an English thread bottom bracket
Takes a 26.8mm diameter seatpost (Seat bolt supplied)
Takes standard 1" headset
Fork rake: 4cm

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