We rarely notice them, but they’re the only things which keep us in contact with the road surface. In a new series for DTW, Andrew Miles gets up to his neck in the black stuff.
Charles Goodyear died in debt. Frank Seiberling did no such thing. What links the two is a story of endeavour, brutality, aggressive tactics and a whole host of honest “Ites”. Oh, and a rather large balloon.
There’s an awful amount of ill-informed, arbitrary rubbish spouted about tyres. Here’s some more.
Tyres are made of rubber and are there to make the ride of your car soft. It’s the air that gives the cushion, so you need to keep them pumped up, but not too hard. They have grooves cut in them called tread that let the rain out and if the grooves aren’t deep enough the police can fine you – I think it’s 1 mm, or maybe 2. I know a garage that keeps some part-used tyres out the back with more than enough legal tread and they will sell them to you at a fair price including balancing, though you don’t really need that as long as you drive at sensible speeds. I wacked my front tyre on a sharp kerb the other day which took a bit of rubber off and you can see some of the canvas stuff underneath, but it isn’t losing air. Maybe they’re the ones with tubes. Anyway they should be OK till the next MOT.Continue reading “The Carbon Black Arts”
From a time when Citroën led the way – and, of course, nobody followed
The standard wheels for the Citroen SM were heavy steel items, clad with hubcaps. These are made from stamped stainless steel, held firmly to the wheel by a centre bolt. The centre section is painted satin black and the sections between the outer fins are painted in satin silver-grey. There are holes in the hubcaps that allow the actual wheel bolts to show.