Had my bike 3 months road 25 miles yesterday first time. I was bike tired as much as anything. Neck, sholders and my but. Had some long hills where I got low on breath. did not stop just road till I got it back. Will these things improve the more I ride? I think the main problem was that I had not been on my bike in a week. Gitting in shape is all new to me I have never tried untill now. Also went clipless and I love them. Went with MTB style they seem to walk better. I fell in a parking lot first time out. Guess I started out right.