236973 18 Inner Tubes with Steel Center Valve Suitable for 3 25 3 5

These 16-inch heavy-duty inner tubes from Metzeler are crafted from non-porous butyl rubber, a material preferred for its exceptional air-holding capabilities. Standard natural rubber tubes can be porous, leading to slow pressure loss, but these butyl versions maintain consistent inflation over time. This is particularly beneficial for Harley-Davidson riders who require stable tyre performance for long-distance touring. The heavy-duty wall thickness adds durability against punctures and internal wear. Metzeler’s reputation for excellence ensures that these tubes meet the high standards necessary for heavy cruiser and custom applications.