Are you going there too? Once I was in the Caucasian mountains in the spring there was quite cold and disgusting weather. It was windy and slippery around. To drive a bike was quite problematic 
So I've found some tips for me and can share it with you now http://bestadviser.net/how-to/how-to-keep-riding-in-wet-and-cold-conditions/.
Have a good rest)