The country lanes are certainly fairly free of traffic and we have hired bikes ourselves - it's a lovely, peaceful place to cycle surrounded by beautiful scenery. I would urge you however to take care as sometimes cars (especially locals who know the roads well) do travel at alarming speeds and they don't always slow down as they should when passing groups of cyclists. When we were over earlier this year we witnessed the aftermath of an horrific accident on a country lane where a car had simply been going too fast, lost control and hit a brick wall... The lanes are narrow, and sometimes winding, so you need to keep your wits about you (and hire cycling helmets!) I have to say also that some families who cycle together in PP have a tendency to do so three or four abreast, which obviously increases the danger and annoys the hell out of other road users...