Читать книгу Proficient Motorcycling - David L. Hough - Страница 62

Let’s consider how to make quick, painless, maximum-effort slowdowns. First, there are forces we’re trying to overcome with the brakes. Inertia is the physical property of objects wanting to keep moving in a straight line at the same speed. A speeding motorcycle wants to keep speeding along pointed straight ahead, even if we roll off the gas. What’s important about inertia is that it increases significantly with speed. Gravity is a constant—it’s the same regardless of speed. But the higher the speed, the greater the forward energy. To slow down a motorcycle or bring it to a stop, we’ve got to overpower its forward energy.

Of course the bike will slow down if you just roll off the throttle. Wind resistance, rolling friction, and engine compression braking all help overcome forward energy. But if you need to slow down quickly, you’ve got to use the brakes, and braking successfully requires both knowledge and skill.

Gravity is a constant that doesn’t change with increased speed, but forward energy increases dramatically with speed.