And these are not young tearaways, either; they're older and more mature than you might expect. But this year's toll is bad; as an ex-biker I wouldn't want to ride on most N Wales roads now as during the next few months they'll be very crowded with people spending more time on watching the scenery than the road.
But on two wheels you're very vulnerable. We were driving the A5 on the Nant Ffrancon some years ago when a biker passed us - not at a huge speed - but then they just seemed to lose control and fall off. I've also seen a biker lose a foot when an older car with sticking-out bumpers collided with him, another crashing after a car pulled out without a signal or without - apparently - seeing him, another who braked suddenly and lost control - the list goes on.
I'm guessing one problem is the acceleration some of the big bikes can muster; it's so great if the road surface isn't almost perfect the rear wheel can try to overtake the front wheel, with predictable results.