Some people ride motorcycles year round despite the snow. Some are so dedicated that they actually attach an outrigger to their bikes so they don’t necessarily fall if a tire slides.
Instead of my anecdotes, I wanted to address this question more generally–yes, it’s much more dangerous.
- Think about the momentum. Most street motorcycles (with rider) weigh between 500 and 1000 pounds. Without coming to a complete stop, how do you overcome that to turn on ice? What will a panic stop look like?
- If you ride a bicycle on ice, you probably fall down some. The same is true with a motorcycle. The speeds are rarely comparable, and you also have to assume some injury from the bike itself hitting you as you go down.