Drag Specialties inner tubes feature a full 2mm thickness compared to a standard 1.2mm thick inner tube. This gives the tube improved durability and resistance to punctures. The butyl and rubber construction tubes are available for popular 16-in., 19-in. and 21-in. tire sizes with center metal valve stem (CMV) or side metal valve style (SMV) types.
The tubes are sold each.
Suggested retail is $20.95 – $29.95.
Link: Drag Specialties