Japanese 'Studless' tires are incredible, but they aren't magic. Learn the physics of driving in 30cm of fresh powder.
The Power of "Studless" If you are from a place that uses metal studs or chains, Japanese winter tires might look "normal" to you. They are called Studless Tires, and they are some of the best engineering in the world. The Reality: They use a special soft rubber compound that stays flexible even at -20°C. They "bite" into the ice and snow. But, even the best tires can't overcome physics if you drive like a maniac. At JapanSnowWatch, we see cars in ditches every single morning on our road cams. Here is how to make sure yours isn't one of them. --- 1. The 4WD + Studless Combo When you book your rental car, ensure it is 4WD.
Why? A 2WD car with winter tires can stop just as well as a 4WD, but it can't start as well. If you stop on an icy hill in Hakuba in a 2WD car, you are going to slide backwards. 4WD is your insurance policy for getting out of the hotel parking lot. 2. Engine Braking is Your Friend Do not slam on your brakes. The Technique: Use your gears to slow down. If your rental car has "manual mode" or "L" (Low) gear, use it when going down steep hills. Let the engine slow the car down so you don't lock your wheels on the ice.
3. The "Yellow Stick" Hazard (The Ditch) Japanese mountain roads are often lined with deep concrete drainage ditches (Gutter). When it snows heavily, the snow covers these ditches, making them invisible. The Warning: Look for the tall red or yellow poles on the side of the road. These mark the edge of the asphalt. Never drive outside those poles. If you do, you will drop a tire into the ditch, and you will need a tow truck. 4. Clearing Your Roof It is illegal (and dangerous) to drive with 30cm of snow on your roof.…