I posted on here a few days ago and thanks to the person who helped me with my stick question. I now was wondering if anyone could let me know anything about Bauer 30-50 Mega rollerblades. I just bought a pair from a neighbor's garage sale for $15 and the kid told me they were only used a few times and they look brand new. Was this a good price to pay? Can anyone tell me if these are good skates? However, the skates didn't come with any wheels becasue the kid told me they got ruined skating on our street. He told me they used a hi lo system. Can anyone tell me what that means. He said that the two front wheels were 72 mm and the third wheel is 80mm and that the last wheel was 78mm. Maybe someone could explain to me why the last wheel would be smaller than the middle wheel? Or maybe the kid i bought them from was just wrong. I know this was a long post so thank you to anyone who could help me out. Roller hockey isnt a very popular sport where I live so getting information about it is hard and this site has really helped.