There is no ERG mode on this trainer, but it does provide enough resistance to replicate riding a bike. also played music from my phone on this kit for about 3 hours without my honda rancher engine running and didnt mess with battery charge at all. Come on Skechers we love your shoes for the comfortable footbed so please be more consistent with size. I then tightened a c-clamp making sure it is centered on Garmin bracket and left it overnight. If the head of the small bolt was about one inch long it would be an altogether easier task. So do that if you get a vibration noise. They would pick up every noise going on around you and not your actual voice! So light that I feel like Im going to break them 😳😂 Very sleek & can see everything clearly; the nose thing is really comfy, I can barely tell that Im wearing them 😎 I actually have really enjoyed this little organizer, I’m currently using it to store all of my Christmas wrapping supplies, making them portable and perfectly organized. Havaianas son las únicas “pata de gallo” que me gusta como ajustan a mi pie.