The CST 24 × 1.90/2.125 Schrader inner tube is designed for 24" tyres, providing reliable air retention and durability for everyday cycling. The 48 mm Schrader (Auto) valve allows easy inflation with most bicycle or car pumps. Ideal as a replacement or spare tube for children’s bicycles, BMX bikes, or small-wheel bicycles.

Specifications:

• Brand: CST
• Wheel size: 24"
• Tire width: 1.90–2.125"
• ETRTO: 50-507
• Valve type: Schrader (Auto)
• Valve length: 48 mm
• Material: Butyl rubber – elastic and airtight
• Packaging: Box
• Weight: 182 g