inner tube with AV valve for wheelchair applications; match the full size and valve arrangement before ordering.
Alternative size markings: 57-203, and, 62-203
Key Features
- Valve: AV
- Application: Wheelchair
- Product code: 50150
Fitment & Compatibility
Inner tubes must match the complete tyre-size range, valve type, valve angle and wheel clearance. A matching nominal diameter alone does not confirm fit. Compare against the existing wheel and equipment requirements before ordering.
Browse Wheelchair Tyres & Tubes for related sizes and tubes.
Frequently Asked Questions
How do I confirm this inner tube will fit?
Match the complete tyre-size range, plus the AV type and wheel clearance. You may also see this size marked as 57-203, and, 62-203.
What size is this inner tube?
Which valve does it use?
This tube uses a AV valve. The valve type and angle must match the wheel.
Does this listing include a tyre?
No. This listing is for the inner tube only.
Can the same tyre size use different valve types?
Yes. The valve style and angle must be checked as well as the nominal size.
What inflation pressure should I use?
Follow the tyre sidewall and equipment manufacturer's pressure requirements.
Should I replace the tube when replacing a tyre?
Inspect the tube for age, cracking, abrasion or previous repairs and replace it if damaged or deteriorated.
What should I check during installation?
Make sure the tube is not twisted or pinched between the tyre bead and rim and that the valve sits naturally.
What is the product code?
50150
Can MoveSmart help me check fitment?
Yes. Send us a clear photo of the current tyre and tube markings, valve and wheel if you are unsure which replacement to choose.
| Feature | Details |
|---|---|
| Part type | Inner tube |
| Nominal tyre size | 12½ × 2¼ (12.5 × 2.25) |
| Listed size markings | 57-203 and 62-203 |
| Application | Wheelchair |
| Valve | AV |
| Listed applications | Wheelchairs and pushchairs; size and valve match required |
| Product code | 50150 |
