An inner tube in size 12½ × 1.75 × 2¼ with a DIN7768 valve. Match the complete tyre marking, valve shape, rim and wheel requirements before ordering.
Frequently asked questions
How do I check the fit?
Compare the full size marking, tyre construction, rim and clearance with your current wheel and the equipment manufacturer’s requirements. Send us a photo of the markings if you need help.
What should I check about the valve?
Check the DIN7768 valve against the existing tube, valve hole and available wheel clearance. A matching nominal tyre size alone is not enough.
Specifications
| Feature | Details |
|---|---|
| Tube size | 12½ × 1.75 × 2¼ |
| Valve | DIN7768 |
| ETRTO marking | 47-203 |
| Supplier product name | 12½ x 1.75 x 2¼ (47x203) DIN7768 Bicycle/Buggy Tube |
| Product code | 50151D |
