Description
A quality inner tube is the foundation of reliable tire performance, and cheap replacements can leave you stranded with unexpected flats during critical racing or trail sessions. The METZELER Heavy-Duty 21″ tube combines natural rubber durability with reinforced construction to resist punctures and maintain consistent pressure under demanding conditions. Whether you’re running vintage racing machines or specialty applications, this tube delivers the dependability professional racers and serious enthusiasts demand.
Technical Specifications:
- Size: 21 inches
- Valve Type: TR-4
- Construction: Heavy-duty
- Material: Natural rubber blend
- Puncture Resistance: Enhanced
- MPN: 2109710
- Application: Universal fitment
