12-Inch Inner Tube – For 12x1.75 to 12x2.125 Tyres – Angled Schrader Valve
Regular price £12.95Unit price /Unavailable12-Inch Inner Tube – For 12x1.75 to 12x2.125 Tyres – Schrader Valve
Regular price £18.95Unit price /Unavailable10x2.125 inner Tube with bent Valve (60/50)
Regular price £9.95Unit price /Unavailable
Expert guide: choosing the right pushchair inner tube
Inflatable (air-filled) wheels provide real everyday comfort. They absorb shocks from pavements, kerbs and uneven paths far better than solid wheels, while improving stability and handling. When a puncture or pressure loss occurs, replacing the inner tube is usually the quickest and most effective solution. The key is simple: choose the correct size and the correct valve.
1) Identifying the correct size: inches and ETRTO standards
To avoid ordering the wrong part, always check the markings on the sidewall of your tyre (or on the original inner tube). You will usually see:
- a size in inches (e.g. 10 x 2, 12 1/2 x 2 1/4)
- or an ETRTO size in millimetres (e.g. 270x47-203, 280x65-203, 312x52-250)
Our catalogue covers the most common standards used on pushchairs, buggies and prams in the UK.
Small wheels (10 inch)
- Typical use: compact pushchairs, swivelling front wheels and urban models.
- Common sizes: 10 x 2, 10 x 2.125.
Ideal if you are looking for a 10 inch inner tube pram or a buggy inner tube for small wheels.
The versatile standard (12 / 12.5 inch)
- Typical use: 3-wheel pushchairs, all-terrain prams and wider rear wheels.
- Common sizes: 12 1/2 x 1.75, 12 1/2 x 2 1/4.
A popular choice for pushchair inner tube 12.5 x 2.25 and many stroller wheel inner tubes.
Common ETRTO sizes
- 270x47-203
- 280x65-203
These dimensions are widely used on inflatable pram wheels. Always match the exact ETRTO marking printed on your tyre to ensure compatibility.
The specific size: 312x52-250
If your tyre is marked 312x52-250, this exact size is essential. It is a specific standard found on certain all-terrain and trekking pushchairs. Substitutes will not fit correctly.
Large wheels (16 to 20 inch)
- Typical use: jogging strollers, running pushchairs and specialist models.
These larger diameters offer smoother rolling and greater stability, provided the exact size printed on the tyre is respected.
2) Choosing the right valve: the detail that prevents most mistakes
Beyond size, the valve type is crucial, especially on smaller wheels where access can be limited.
- Angled Schrader valve: Often essential on 10 inch wheels and some 12 inch wheels. It allows easy pump connection without interference from the hub or rim.
- Straight Schrader valve: Commonly used where space allows, particularly on larger wheels (16 to 20 inch) and certain rim designs.
Tip: if you are unsure whether you need an angled or straight valve, check your current inner tube or rim layout. Matching the existing valve type is the safest way to avoid incompatibility.
3) Practical tips for a long-lasting repair
- Before fitting: carefully inspect the inside of the tyre for thorns, glass or debris to prevent immediate punctures.
- During fitting: slightly inflate the inner tube before installation to avoid pinching or twisting.
- Inflation: follow the recommended pressure indicated on the tyre sidewall to reduce wear and minimise puncture risk.
Reliable inner tubes for worry-free outings
Our pushchair and stroller inner tubes are made from quality butyl rubber, offering excellent air retention and durability for everyday use. Whether you need a small 10 inch size, a versatile 12 inch standard, a precise ETRTO dimension or the specific 312x52-250 reference, you will find a dependable pram tyre tube replacement here, fitted with the correct valve for easy inflation.
Looking for a specific size?
Browse our inner tubes by diameter: