transportadora de Bicicletas

[JRMoreira]

boas a todos!

Daqui alguém tem uma transportadora para poder levar a bicicleta em transportes públicos?

o que acham destas hipoteses;
http://www.roofbox.co.uk/scripts/rb...h96250_96250_/Qx@w,6M42VAwp3@Rb{~cC4ure`Kiii#

http://www.roofbox.co.uk/scripts/r...42VAwp3@Rb{~cC4ure5uRRW#myGallery-picture(2)

http://www.roofbox.co.uk/scripts/rbvehsel4_tab.php/car-specific-accessories/b_w_international_bike_box_no_bh96910_96910_/Qx%40w%2C6M42VAwp3%40Rb%7B~cC4ure%60Kiix#myGallery-picture(2)
http://www.bikeradar.com/gear/category/accessories/bike-travel-cases/product/review-biknd-helium-travel-case-39902


As duas primeiras parecem-me interessantes pelo preço...
Já alguém usou?

EDIT;
Mais uma
http://www.youtube.com/watch?v=UBcAZe5zpfo
http://www.competitivecyclist.com/za/CCY?PAGE=PRODUCT_REVIEW&ARTICLE_ID=3777&RETURN=SciCon%202011%20SciCon%20Aero%20Comfort%20Plus%20Travel%20Case%20page&RETURNLINK=%2Fza%2FCCY%3FPAGE%3DBUY_PRODUCT_STANDARD%26PRODUCT.ID%3D1153%26CATEGORY.ID%3D2840%26MODE%3D%26TFC%3DTRUE