[Lexman8]

Will you be fitting winter tyres on the 22" wheels? This is assuming you can even find tyres that size as they'd be a poor combination in difficult conditions.

Starting this year (from Nov through to Mar) there's a legal requirement in some areas of the French Alps for winter tyres to be fitted. The exact areas covered are determined by the local authorities.

Personally, and regardless of the legal requirements, I wouldn't venture into the higher parts of the Alps without winter tyres on reasonable size wheels (I have a home there so I'm familiar with the conditions).