I am someone who lives in a very flat area, not a single hill. Suppose I was taking a road trip and had to go up and down some mountains, what tips should I consider to be safe? How do I avoid ruining my clutch or my breaks?

  • RubberElectrons@lemmy.world
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    2 months ago

    Good comment, though I need to disagree re: quick braking based on physics principles; moto brakes are designed to handle heat load in most common environments, whether from fast hard braking or long moderate applications.

    Energy cannot be created or destroyed, right? Brakes turn kinetic energy into heat, and that’s a function of clamping force.

    You’re applying less clamping to your brakes over a long period, and rejecting that energy as heat. You’re in fact generating very close to the same net heat with a sharp, fast change in velocity, as between the two options what you’re really affecting is your kinetic energy.

    The difference between the two options is subtle actually, quick steps allow cooling air to access the center of the brake pad between applications, long stop actions don’t. But pads and fluid are now designed to conduct heat well enough to transfer the heat away faster than it can be generated, even if cooling now only affects 5 sides instead of six. That’s the primary and crucial reason why brake fade is no longer common.

    Fast breaking adds potential loss of control into the mix, so it shouldn’t be necessary or recommended.

    • BearOfaTime@lemm.ee
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      2 months ago

      Which is what I said - they have a longer cooling time between braking cycles.

      A longer braking cycle also occurs over a longer distance and time, meaning more time for gravity to continue contributing energy to the equation. A faster deceleration between the same two speeds is less energy dissipation overall (say 70 to 60 over 5 seconds VS 30 seconds). There’s 5 seconds of additional acceleration due to gravity VS 30 seconds more.

      But the biggest thing is you get a long cooling cycle instead of steadily heating the pads and rotors to simply “hold” against gravity. The rotors simply don’t have the mass the absorb and dissipate that steady, continual heat input.