Positz Kids Bike Tubes 16 x 1.75–2.125 (Schrader, Box of 2) are designed to keep your child’s bike ready for any ride, from the local park to the school commute. Made from high-quality butyl rubber, they’re built to hold air well and provide a smooth, dependable ride for young cyclists.

Each tube comes with a standard 35mm Schrader valve – the same type you’ll find on most car tyres – making them simple to inflate with either a standard bike pump or a service station air hose. The versatile sizing ensures compatibility with a range of 16-inch tyre widths, giving you flexibility no matter what brand of tyres you use.

Who is this for?

These tubes are ideal for parents wanting a reliable, fuss-free replacement for kids’ bikes with 16-inch wheels. They suit families who want good quality without overpaying, and cyclists who prefer the convenience of a Schrader valve for easy inflation at home or on the go.

Who is this not for?

If your child’s bike uses 16-inch tubeless tyres or a different wheel size, these won’t be the right fit. They’re also not suited for riders seeking ultra-light race tubes or a presta valve option – these are all about everyday durability and convenience.

Why we love it

We like these tubes because they strike the right balance between quality, compatibility, and price. The standard Schrader valve is easy to inflate, the butyl rubber construction holds up well, and the twin-pack means you always have a spare ready to go.

Item specs

• Size: 16 x 1.75–2.125 (fits tyre widths 44–54mm, rim diameter 305mm)
• Valve: Schrader (car valve), 35mm length
• Tube type: Standard butyl
• Weight (per tube): 125g
• Price is for 2 tubes

Fits tyre sizes:

• 16 x 1.75 (44-305)
• 16 x 1.85 (47-305)
• 16 x 1.90 (47-305)
• 16 x 2.00 (50-305)
• 16 x 2.10 (54-305)
• 16 x 2.125 (54-305)