A pricey, used spare tyre and the manual we don't have

We get off to an early start but to no use. There is no tyre that will fit our scooter in the whole of Iringa. The Chinese imports on the market have a bigger wheel, almost double the size of the Vespa. Alberto follows one of the locals around town all morning looking for a possible replacement, but nothing can be done. A local mechanic promises he will be able to organise 'something', but we are