Cult Rubber Tube

Product Overview

The Cult Rubber Tube is an inner tube designed for larger-volume BMX and cruiser tires. Built to accommodate bigger tire widths without excessive stretching, this tube provides reliable air retention across multiple wheel sizes. Available in 20", 18", 16", 14", and 12" sizes to fit BMX bikes across all age categories and wheel configurations.

Key Features

• Designed for larger tire volumes – Engineered specifically for wider BMX tires (2.2" and above) to prevent overstretching and reduce pinch flat risk
• Multiple wheel size options – Available in five sizes (20", 18", 16", 14", 12") to cover standard BMX, mini BMX, and kids' bikes
• Durable rubber construction – Quality rubber compound resists punctures and maintains air pressure over extended periods
• Universal valve compatibility – Standard valve type (Schrader or Presta—verify product specifications) fits most BMX rims and pumps

Technical Specifications

• Brand: Cult
• Wheel sizes available: 20", 18", 16", 14", 12"
• Tire compatibility: Larger volume tires (typically 2.2" width and above)
• Material: Rubber
• Valve type: Standard (verify Schrader or Presta on product packaging)
• Recommended use: BMX freestyle, cruisers, dirt jumping, kids' bikes

Compatibility and Ideal Use Cases

These tubes fit the corresponding wheel size marked on the packaging—20" tubes fit 20" BMX wheels, 18" fit 18" wheels, etc. The "designed for bigger tires" specification means these tubes work best with tire widths of 2.2" and above; using them with narrower tires (1.75"–2.0") may result in excess material bunching inside the tire. Ideal for riders running fat tires on freestyle bikes, cruiser setups, dirt jumpers, or kids' bikes with wider tire profiles. The multiple size options cover nearly all BMX wheel configurations: 20" for standard BMX and cruisers, 18" for mini BMX, 16" and 14" for intermediate kids' bikes, and 12" for balance bikes or toddler BMX bikes. When selecting tube size, match both the wheel diameter (12", 14", 16", 18", or 20") and verify your tire width falls within the tube's recommended range. Always slightly inflate the tube before installation to give it shape, then deflate before mounting to prevent pinching between tire and rim.