E-bikes are perhaps the most important evolution cycling has made since the invention of the mountain bike because e-bikes get more people on bikes. And more people on bikes is an amazing thing.

I have to assume that mountain bikes make the list for the same reason, in which case I disagree - more people on mountain bikes made biking as a whole seem more like exercise than the great form of active transportation it always was. Then again, I'm open to hear what's supposed to be so great about them, I never rode one.

Don't get me wrong, mountain biking as a sport is great. Just going out and enjoying cycling as leisure is great as well. But I wouldn't call the invention of the mountain bike a great leap forward for cycling.