Check the motorbikefriendly website - below.
Depending on whcih bit how long and where you want to ride in east europe there will be some places you can stay on there.
The mountain pass referred to in the post above is only open certain times of the year - so check before you go.
Romania is a great place to ride anyway - stay away from Bucharest tho.
PM me if you're going to go that way.

Bill Shaw Mission Motos - Motorcycle Travel Solutions.
Cool Motorcycle Packing Stuff Generally less than you'd pay from the US direct.Discounts at the moment as trying to sell it all off.
www.motorbikefriendly.com - we are always looking for B&B owners (anywhere) to add their B&B's to our free listing. Rider owned and run places especially welcome. Riders resource site - routes etc, ask questions of the locals.