Standard Inner Tube — 21", 2.50-21, TR-4 valve

PARTS UNLIMITED Standard Inner Tube — 21", 2.50-21, TR-4 valve

PARTS UNLIMITED
0350-0349
B20077

100% butyl inner tube for longer air retention. Individually boxed with size and valve type labels. Available in a full range of sizes and valve options.

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€11.99
€16.98
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Reliable inner tube built for consistent air retention and easy service. ✅

  • Real butyl tubes made from 100% butyl polymer, providing reduced air permeability compared with blended alternatives.
  • Each tube ships in its own box; sizes and valve stem types are clearly marked on the box ends for quick identification.
  • The 100% butyl construction helps maintain pressure longer, reducing the need for frequent top-ups.

Ideal for motorcycle riders and shops that demand dependable performance and clean packaging. 🔧

: 0350-0349
In Stock

Data sheet

Type
Motorcycle
Units
Each
Brand
PARTS UNLIMITED
Rim Diameter
21"
Duty
Standard
Inner Tube Valve Stem Type
TR-4 (Round Base), Center Metal Valve (Threaded/Nuts)
Tube Thickness
2.0 mm
Material
Butyl Polymer
Tube Fits Tire Size
2.50-21