Motorcycle inner tube 21 inch for tyres 90/90-21, 100/70-21, 100/80-21 and 3.00-21
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21 Inch Inner Tube 3.00/3.25-21 - Straight Schrader Valve (TR4)
21-inch standard 1mm inner tube for tires 3.00-21, compatible with metric sizes 90/90-21, 100/70-21, and 100/80-21. Standard version ideal for trail, adventure, enduro, motocross, and dual sport motorcycles. Made from butyl rubber, it offers good pinch resistance and reliable airtightness for regular off-road and on-road use.
Technical Specifications
- Sizes: 3.00/3.25-21 (90/90-21, 100/70-21, 100/80-21 compatible)
- Rim Diameter: 21 inch
- Valve Type: Schrader (TR4)
- Valve Orientation: Straight
- Material: Butyl rubber
- Thickness: 1mm
- Weight: 400g
- Contents: 1 unit
Compatibility
Compatible with Tube Type (TT) tires in sizes 3.00-21, 90/90-21, 100/70-21, and 100/80-21. Suits the 21-inch front wheel of trail, adventure, enduro, motocross, dual sport, and certain off-road electric motorcycles. May also be used in certain configurations on a non-airtight spoked rim requiring an inner tube. Check the size printed on the tire sidewall before fitting.
Inflation
The straight Schrader TR4 valve is compatible with standard inflation equipment: foot pump, compressor, and gas station air pump. No adapter needed for typical use.
Specifications
Specifications
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Valve type
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Valve orientation
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Size (in inches)
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