Excess Bluetech Ultra Lite Inner Tubes are made of Thermoplastic Polyurethane. They are incredibly lightweight and durable for BMX racing. The ULT's are made from a blend of strong, flexible polymers, and are superior in quality and price when it comes to performance and weight for BMX racing & Ultra Lite Tubes. This helps offer you the lightest weight rotarian weight package for your BMX wheels. 

Excess ULT tubes are extremely light, yet highly puncture resistant. The low rolling resistance offers high performance and speed. The Excess ULT tubes, are made in Germany using high grade TPU, and a patented welding process and a patented valve design. 

Features: 

• Ultra Lite Smoked Clear Thermoplastic Polyurethane Material
• 40mm Length Alloy Valve, that has a  removable valve core
• TPU - thermoplastic polyurethane was developed by BF Goodrich
• Tube material is 100% recyclable

Ultra Lite Tubes Weights: 

• 20 x 1 1/8- 3/8": 22 Grams / 0.77 Oz
• 20 x 1.4- 2.5": 32 Grams / 1.1 Oz
• OS20 x 1.4- 1.95": 35 Grams / 1.23 Oz