Custom paperwork when shipping into Europe?
 

Hi,

I´m a Belgian motorbike traveler and I shipped my bike by ship from Auckland,New Zealand to Barcelona,Spain. At the moment i´m still waiting for the bike. I´m just wondering: I shipped the bike before a few times but then i worked with the Carnet. As i ship it into Spain i don´t need to use the Carnet. Although i probably have to do some paperwork with the customs.
I´d just like to know or there´re people with experience on this. So i get an idea what to expect. Would there be any extra costs involved? I just use Barcelona as a transit port because i´ll ride the bike back to Belgium.
Any info would be helpful!
Thank you beforehand!

Cheers,
Bossit