Birzman Belly B Top Tube Bag

Developed for races and short travels, the top cover reveals a wide opening, providing an easy reach to small items or energy gels. The narrow body is designed to minimise contact with the thigh when pedalling.

This top tube bag provides enough volume for the most important equipment on the small tour. There is enough space for a wallet, spare tube or mini tools. In the three small outer pockets granola bars can be accommodated, so they are quickly available without a long search. The highly resistant material is water repellent and ensures a long service life. The practical rain cover also protects the contents from heavy and prolonged rain.

The bag is attached with adjustable Velcro straps on the top and head tube.

• Material : 300D Polyester (Water Repellent)
• Size : 18 X 8 X 4.5cm

Key Features

• Wide opening top cover for quick access to essentials

• Narrow profile reduces contact with thighs while pedalling

• Water repellent 300D polyester material for durability

• Includes protective rain cover for heavy rain conditions

• Multiple outer pockets for energy gels or snacks

• Compact size ideal for races and short rides

• Secure mounting with adjustable Velcro straps

• Lightweight and convenient cycling storage solution

Product Specifications

• Brand: Value: Birzman

• Product Type: Value: Top tube bag

• Material: Value: 300D Polyester (Water Repellent)

• Size: Value: 18 x 8 x 4.5 cm

• Mounting Type: Value: Adjustable Velcro straps

• Storage Type: Value: Main compartment with outer pockets

• Weather Protection: Value: Water repellent with rain cover

• Usage Type: Value: Cycling storage accessory

Design & Accessibility

The narrow and ergonomic design ensures minimal interference while pedalling, improving riding comfort. The wide-opening lid allows quick one-hand access to essentials such as snacks, tools, or small accessories, making it ideal for performance-focused riders.

Easy Operation / Usage

• Attach bag securely to top tube using Velcro straps

• Fix front strap around head tube for stable positioning

• Store essentials such as gels, tools, wallet, or tube

• Close lid securely to protect contents

• Use rain cover during heavy rain conditions

Why Choose This Product

• Compact design ideal for quick-access storage

• Comfortable slim profile prevents leg interference

• Durable material ensures long-lasting performance

• Water repellent fabric protects valuables

• Easy installation with adjustable straps

• Trusted Birzman design for cycling efficiency

In the Box

• Birzman Belly B Top Tube Bag

• Rain Cover