Answer:
Explanation:
I used to bicycle about 30 km 3 times a week. It's not far, but it's enough to know what I think the answer is.
A common problem for all cyclists (male and female) is clothing getting caught in the chain. Nothing completely protects the rider from that happening. So dresses would have to be shortened probably about mid calf and they would have to be widened, to give women the space they need for their legs and the comfort they need to have their limbs moving up and down. That's one change that would be absolutely necessary.
A less obvious one is the blouse. I don't know how to put this, and I'm sure not going to ask, but I think it can't be too tight and too dainty at the same time. There's a lot of effort needed to bicycle (say) up a hill and there can't be something restricting being warn. This last point applies to a lot of garments that were popular in the mid 1800s to the 1920s for a lot of reasons other than bicycles. You could think about riding horses, to expand your question.
