Aerodynamics Meets Practicality: Introducing the EZ Hydro-Gains® Toolbox

The EZ Hydro-Gains® With Toolbox combines aerodynamic performance with practical storage in one compact, race-ready system.

Designed to optimise airflow behind the saddle, it delivers measurable aerodynamic benefits while keeping hydration and essential equipment securely within easy reach.

Performance Without Compromise

Unlike traditional storage solutions that can add drag, create clutter, or introduce instability, the EZ Hydro-Gains® Toolbox integrates seamlessly into your bike setup.

The result is a cleaner, more organised bike that allows you to carry everything you need without compromising performance.

Save Watts. Save Time.

Developed using extensive real-world testing and aerodynamic principles, the EZ Hydro-Gains® Toolbox is designed to reduce drag while providing convenient access to race-day essentials.

By positioning hydration and storage efficiently behind the saddle, riders can maintain a clean aerodynamic profile while keeping critical equipment exactly where it is needed.

Secure Storage. Zero Rattle.

Inside the toolbox, integrated foam padding helps keep your equipment secure, organised, and silent over rough roads.

There’s space for many of the essentials triathletes and cyclists typically carry, including:

• Inner tubes
• CO₂ cartridges
• Tyre levers
• Multitools
• Nutrition
• Spare parts
• Race-day essentials

Everything stays protected and easily accessible when you need it.

Hydration Made Simple

Available in both single and dual-bottle configurations, the EZ Hydro-Gains® system can be tailored to suit your riding style and race distance.

Whether you're preparing for a sprint triathlon, a long training ride, or a full-distance event, the modular design provides flexible hydration options without sacrificing convenience or aerodynamic performance.

Built Specifically For Your Saddle

Every EZ Hydro-Gains® mount is individually designed for specific saddle models rather than relying on a universal fit.

This saddle-specific approach helps provide:

• Improved stability
• Secure fitment
• Optimised bottle positioning
• Reduced movement over rough surfaces

The result is a cleaner and more reliable setup trusted by athletes around the world.

Why Choose The EZ Hydro-Gains® Toolbox?

The EZ Hydro-Gains® Toolbox combines hydration, storage, and aerodynamic performance into one integrated solution.

Designed for athletes who demand both speed and practicality, it helps:

• Carry essential spares securely
• Improve organisation during training and racing
• Maintain a clean aerodynamic setup
• Eliminate noise from loose equipment
• Optimise airflow behind the saddle

Trusted by professional triathletes and world champions, it delivers a secure, race-ready system built for performance at every level.

Already Own An EZ Hydro-Gains® System?

If you already own an EZ Hydro-Gains® rear hydration system, there’s no need to purchase a complete new setup.

Simply add the Toolbox Attachment and continue using your existing saddle clamp.

By swapping your current EZ Hydro-Gains® fin for the Toolbox fin, you can add integrated storage while retaining the same secure mounting system and bottle configuration.

It’s a quick, simple, and cost-effective upgrade that adds valuable storage without changing your existing bike setup.

Trusted By The Best

With over 4,000 units sold worldwide, EZ Hydro-Gains® has become the rear hydration system of choice for some of the sport’s most successful athletes, including IRONMAN® world champions and hundreds of professional triathletes worldwide.

If you're looking for a rear hydration solution that combines aerodynamic performance with practical storage, the EZ Hydro-Gains® Toolbox is built to deliver.