Go lighter. Pack smaller. Keep rolling.

The Race Formula Ridenow TPU Gravel Inner Tube is an ultra-lightweight 700c gravel bike inner tube designed for tyres from 32–47mm wide. Made from thermoplastic polyurethane (TPU), it delivers a substantial weight and pack-size saving over conventional butyl tubes without sacrificing the practicality of a traditional inner tube setup.

At just 45g, the Ridenow Gravel Tube is ideal for gravel racing, bikepacking, adventure rides and everyday all-road riding where reducing rotating weight — and carrying a compact spare — actually matters.

TPU construction offers reduced rolling resistance compared with conventional butyl tubes, while taking up around 50% less space in your saddle bag or riding pack. The result is a lightweight, compact spare that's easy to carry on longer rides and remote gravel adventures.

Race Formula's updated TPU + metal composite valve provides improved strength, durability and airtightness, with a removable valve for added practicality.

Features

• Ultra-lightweight TPU construction
• 45g weight
• Designed for 700c gravel and all-road tyres
• Compatible with 32–47mm tyre widths
• Approximately 70% lighter than conventional butyl inner tubes
• Approximately 50% less packed volume for easier storage
• Reduced rolling resistance
• TPU + metal composite valve for improved strength and airtightness
• Removable valve
• Suitable for rim brake and disc brake wheelsets
• Bright colour for easy identification
• Ideal for gravel racing, bikepacking, adventure riding and lightweight road setups

Specifications

• Material: Thermoplastic Polyurethane (TPU)
• Size: 700 x 32/47c
• Recommended tyre width: 32–47mm
• Weight: 45g
• Valve: TPU + metal composite, removable
• Wheel compatibility: Rim brake and disc brake
• Application: Gravel / All-Road / Road

Important Installation & Inflation Warning

Do not inflate the tube outside of a tyre.

Due to the composition and stretch characteristics of TPU, the tyre carcass is required to support the tube during inflation. Inflating a TPU tube outside of the tyre can cause irreparable damage.

This damage is not a manufacturing fault and will void the tube's warranty.

Always install the tube fully inside the tyre before inflating and follow the manufacturer's recommended installation procedure.