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how-it-works
20262 articles
Countersteering: How Motorcycles and Bikes Turn
To turn right on a bike or motorcycle, a rider first nudges the bars left. Here is why that starts the lean, what keeps two-wheelers upright and where the science is still debated.
How Automatic Gearboxes Work: Torque Converter and Gears
A conventional automatic gearbox joins the engine to planetary gears through a fluid-filled torque converter and picks ratios with hydraulic clutches. Here is how each part works.