Back in the saddle, you come to a junction with the SS429. From here you should head in the direction of upper Certaldo, which in July becomes home to the Mercantia, an international festival of travelling theatre. After some exhilaratingly fast ups-and-downs you catch sight of Montespertoli, known as a capital of wine production. Once out of the town, a long, rounded curve precedes a junction, where you turn right for Poppiano and the Guicciardini castle.
The journey winds on, bend by bend, castle after castle, until Montegufoni appears: an old dwelling and an appealing agriturismo farmstay. Montagnana, meanwhile, has different things to recommend it: a radar gun to measure your top speed, and a frittelle festival in April. A few more twists and turns through the olive groves and you are soon at Cerbaia. Now the SP4 narrows, enters the woods, wags rhythmically from side to side and then suddenly squeezes itself into a bottleneck in order to cross a bridge. A road lined with pine trees encourages you to drop down into lower gears, and even allow yourself a schiacciata break at the gates of Chiesanova. One final turnoff for the parish church of Sant’Alessandro in Giogoli, and from then on be prepared for a succession of demanding bends that writhe downwards towards Galluzzo, affording a view of the monastic charterhouse.
Info web: www.provincia.pisa.it, www.provincia.fi.it, www.comune.volterra.pi.it, www.sanvivaldointoscana.com, www.museobenozzogozzoli.it, www.mercantiacertaldo.it