The 1380R20 appears under many different notations across markets, military
procurement systems and inner tube catalogues. All of the following refer to
the same tyre for a 20-inch rim:

• 1380R20 - Millimetre width notation (138mm section width)
• 13/80R20 - Width/aspect ratio notation in millimetres
• 13.80R20 - Decimal millimetre notation, common in inner tube sizing
• 11.00R20 - Standard inch notation, European and international standard
• 1100R20 - Without decimal point, common in B2B and export orders
• 11.00-20 - Bias-style notation, also applied to radial versions
• 1100-20 - Combined short form
• 11.00x20 - X-notation, Eastern European and Asian markets
• 1100x20 - Short X-form
• 300R508 - Metric rim notation (300mm width, 508mm = 20 inch rim)
  
  

When ordering inner tubes for 1380R20 tyres, look for the TR78A valve stem. The inner tube is often listed as 11.00/13.80R20 TR78A in tube catalogues.

Applications

Military trucks - Standard fitment on many Eastern European, African and Asian military transport trucks, including cross-country vehicles requiring high load capacity and field repairability. Tube-type (TT) construction preferred for puncture repair in the field.

Road compactors - The Mitas Compactor pattern is specifically designed for use on road rollers and compaction equipment operating on construction sites.

Heavy off-road transport - Suitable for tippers, construction trucks and site vehicles operating on unpaved roads and rough terrain across export markets.

Cross-country and government vehicles - Used by defence, civil works and infrastructure contractors in regions where 20-inch military-standard wheels are common.

Looking for 1380R20, 13/80R20 or 11.00R20 tyres?

BuyBigTyres stocks this size from Goodyear, Michelin, Mitas, Pirelli and budget brands. For military procurement or bulk export orders, contact us with your quantity, PR rating requirement (TT or TL) and delivery port. We respond within one business day. Worldwide shipping from stock.