Via Bianca

This is an ancient Roman road built mostly with large boulders/blocks, and not really classed as a trail as it is a paved path. It is very well established and worn smooth. It is wider than single track but not as wide as double track (but almost). At the bottom/end of the track there is a substantial set of steps which, although are rideable, can be difficult to ride when hikers are present, it may be better to walk down them Which as a riding track isn't ideal.
Although it is quite fun to ride in places, it is mostly a disappointing descent, especially if you have ridden up to get a good descent down.