Classic bike rear suspension can have a little more complexity than modern set-ups. Here’s what you need to know to keep things going up and down, not side to side…

Regular readers will know the 99 had quite an eventful summer holiday at the Le Mans Classic with the rest of the C&SC gang (News special, September). Several ‘issues’ occurred on its travels, meaning

The first variable timing systems offered on internal combustion engines, powervalves were designed to allow your two-stroke to be both tractable and exciting. Here are the essentials on what they consist of, the different systems and how they function

Tech solutions and real world tips

Porsche has hybridised the flagship 911 – and brought it back to life in the process, creating a thrillingly usable new performance car

Kim plans for when Grasshopper will need a petrol tank