• Upgrade Valve Improve Air Tightness: Internal design adjustment of the valve stem. More compatible with valve core better air tightness
• 700C Road Bike Inner Tube: 70% less weight than the old butyl rubber inner tube. Small size, easy to carry in a pocket
• TPU material Durable & Puncture Resistance: Made of BASF environmentally friendly and recyclable materials. The high elongation rate of the inner tube Improves the scratch, wear, and puncture resistance of the inner tube
• Small Size More Portable: Nearly 70% smaller than an ordinary inner tube. Portable can be carried as a spare inner tube
• Lightweight Faster Acceleration: Reduce weight and save space Improve handling and climbing speed

Specifications:

• Material: TPU
• Valve: FV
• Valve size: 65/85mm (optional)