Also, less correlation between skill and risk in mountain biking. If you can ride a bike, you can ride a bike fast enough to do spinal damage in a crash. If y

Also, less correlation between skill and risk in mountain biking. If you can ride a bike, you can ride a bike fast enough to do spinal damage in a crash. If you can skate, it's still a lot of practice before you're skating fast enough for your contribution to a crash to be risky.