Author Tube AT-CMP-20 AV32 20x1.50/2.20 (μαύρο)

Riders on BMX tracks, kids on neighbourhood streets, and commuters on folding bikes all need a reliable inner tube that fits a range of tire widths. The Author Tube AT-CMP-20 AV32 delivers exactly that, sized for 20-inch wheels and compatible with tires from 1.50 to 2.20 inches wide. With a Schrader valve, inflation is straightforward at any gas station or home pump.

Key specifications

• Wheel diameter: 20 inches (ETRTO 406 mm)
• Tire width compatibility: 1.50" - 2.20" (38-57 mm)
• Valve type: Schrader (AV), 32 mm length, straight stem
• Material: Butyl rubber for excellent air retention
• Colour: Black
• Pack quantity: 1 tube

Why choose it

Butyl rubber construction ensures good air retention, meaning fewer top-ups between rides. The standard puncture resistance is suitable for everyday riding, and the Schrader valve is the most common type, making inflation convenient anywhere. This tube is a direct replacement for many stock tubes on BMX, kids', and folding bikes.

Ideal use cases

• BMX riding and tricks
• Kids' bikes for daily play
• Folding bikes for urban commuting
• Any 20-inch wheel with tire width 1.50-2.20"

Good to know

Always check your tire sidewall for the correct size before installation. The tube fits both front and rear wheels. Keep a spare in your bag for quick flat repairs on the go.