Not the ones in the cylinder head, but the valves and variable flaps hiding in your exhaust system – made famous by the Yamaha’s EXUP. Here’s the what, why and how…

In the years just after the Second World War, motorcycle production in Britain, and indeed most of the Commonwealth, was dominated by prominent British manufacturers who had a stranglehold on the mark

Just 30 years ago, diesel cars were a bit rubbish. They were loud, clattery, vibrating, smelly and usually appallingly slow. But politicians thought they were the bee’s knees, because they were margin

If there’s one thing people associate with British bikes, it’s oil leaks. Rick looks at how to keep your shed floor clean by making sure the cylinder head joint is properly sealed

Sidecars have always been a hotbed of ingenuity, exuberance and grit. We unearthed these extreme chair-mounted exponents in our archive

Massively inclined engine, five valves per cylinder and almost vertical intakes. So is Yamaha’s FZ750 something truly special?