P Philip New member Feb 3, 2010 #1 When I ride my bike my tires feel flat sometimes. When I check them by hand they seem fine. When I go over bumps the tires feel like they are hitting the metal of the wheels sometimes. My bike is a Giant CRS 4.
When I ride my bike my tires feel flat sometimes. When I check them by hand they seem fine. When I go over bumps the tires feel like they are hitting the metal of the wheels sometimes. My bike is a Giant CRS 4.
