WHAT DO YOU WANT TO USE IT FOR?

A classic 350cc bike has the performance of a modern 125cc bike. It will prefer to cruise at a lower speed, and will need an oil change in half the time. However a 1970s Honda 350cc will be spritelier and more reliable.

Also look at the clubs, the local bike meets, and shows. If you’ve a bike in mind, go to the local club night or meet. What are they like? I’ve been completely ignored and welcomed with open arms, depending on which club I was at. Club ride-outs can be a great way to enjoy your old bike.