I've definitely heard people talk about getting hit by bikes. I think the distinction, to the extent it exists, might have a lot to do with what constitutes th

I've definitely heard people talk about getting hit by bikes. I think the distinction, to the extent it exists, might have a lot to do with what constitutes the majority of mass. If you get hit by an 18 pound bike with a 160 pound rider, you really got hit more by the rider than the bike. But if you get hit by a 3000 pound car with a 160 pound driver, you definitely got hit more by the car than the driver. However, depending on ideological viewpoint, it might be tempting to read more into the language.