• Heavy duty tubes are 3 mm thick and puncture resistant.
• High quality Japanese tubes meet or exceed O.E.M. quality standards.
• Made of a blend of natural and butyl rubber.

Tube Specifications:

• Valve stem type: TR-4 (straight metal stem (8 mm diameter)).
• Tyre size: 80/100-21, 90/100-21, 90/90-21, 2.75/3.00-21