EVO Bicycle Tube - 12" x 1.75-2.125 | 35mm Schrader Valve

Is the EVO 12" Schrader Tube Right for Your Child's Bike?

The EVO 12" Bicycle Tube is the go-to replacement for the smallest bikes in the fleet — balance bikes, first pedal bikes, and toddler-sized setups running 12-inch wheels with 1.75 to 2.125-inch tires. The 0.9mm wall thickness provides solid durability for a tube this size, holding air reliably through the kind of riding young kids do. The 35mm Schrader valve keeps inflation simple — compatible with any floor pump, hand pump, or gas station compressor with a Schrader fitting, no special adapter required.

EVO builds these tubes to consistent spec so they seat cleanly without bunching or folding during installation, which matters when you're working in the narrow clearances of a kids' bike. Buy two and keep one on the shelf — a flat on a child's bike is often their first puncture experience, and having a spare ready turns it into a quick fix rather than a ride-ending event. Compatible with 12 x 1.75 to 2.125-inch tires on Schrader valve rims.