Ultralight 28g TPU Inner Tube, 700C x 18/25/28/32 Road Bike Tube with 45/65/85mm Presta Valve

Upgrade your road bike setup with this NPY ultralight TPU inner tube, designed for compatible 700C tyres. Made from flexible thermoplastic polyurethane, it offers a compact and lightweight alternative to conventional inner tubes.

Available in multiple weights and Presta valve lengths, it can be selected to suit different wheel configurations. Its small size, low weight and high flexibility make it suitable for road cycling applications.

Main Features

• Ultralight TPU construction designed to minimise weight and storage space.
• Suitable for compatible 700C road bicycle tyres in 18–32mm sizes.
• High flexibility for easier handling during installation.
• Available with 45mm, 65mm or 85mm Presta/French valve lengths.
• Compact design makes it convenient as a replacement or spare inner tube.

Specifications

• Product Type: TPU Ultra-Light Inner Tube
• Material: TPU (Thermoplastic Polyurethane)
• Tyre Size: 700 × 18 / 25 / 28 / 32
• Valve Type: Presta / French Valve
• Valve Length: 45mm / 65mm / 85mm
• Weight Options: 19g / 28g / 36g
• Box Size: Approximately 4 × 3 × 13.5cm
• Features: Small Size, Lightweight, High Flexibility

Important Installation Notes

• Do not heavily inflate the inner tube when it is outside the tyre, as this may cause irreversible damage.
• Before fitting, slightly inflate the tube to check for leaks.
• During installation, initially inflate to approximately 0.5 PSI so the tube sits correctly against the inner wall of the tyre.
• Never inflate an uninstalled tube beyond 6 PSI, as excessive inflation may cause permanent swelling and damage.