I was out riding on a charity ride this weekend and it was my first time riding in any type of group, as up to now I've been riding by myself. I found that I would catch up and pass people on the hills, but when it came to the downhills, everyone would pass me! Even when I would pedal on the downhills when others were coasting, they would still go by. And it was very consistent through all 30 miles. I don't get it...it's so backwards. Does anyone have any reasons for this and suggestions as to what I can do to increase my speed?

Thanks!
Emily