EZ Hydro Gains® Up to 12 Watts

Trademarks and Registered Designs®  

THE FASTEST & SAFEST TESTED REAR BOTTLE HOLDER ATTACHMENT

Science & Performance

Engineered for elite performance and trusted by the world’s best athletes, the EZ Hydro-Gains rear bottle mount leads the industry in both speed and safety.

Proven Strength & Reliability

• Load tested to 33 lb (15 kg)

• Over 1,000,000 km of real-world road testing using 750ml bottles

• Built for stability in all conditions — from training roads to world-class race environments.

• ISO Manufacture Accredited / WT & IM Legal

Precision-Fit for Every Saddle

EZ Gains doesn’t believe in “one-size-fits-all.”
Each mount is individually designed for your exact saddle model, guaranteeing:

• Maximum aero performance

• Zero rattle

• Perfectly aligned bottle placement
  See the full list under “Seat Type.”

Trusted by the Best

With 2,500+ units sold in the first 20 weeks, EZ Hydro-Gains has become the go-to choice for top athletes, including:

• The Men’s 70.3 World Champion

• The Men’s 140.6 IRONMAN World Champion

• The Women’s IRONMAN 140.6 World Champion

• And over 200 top professional triathletes worldwide

If you’re serious about rear hydration and free speed, this is the setup you need.

Single & Double Options

Order the Double Mount and switch instantly between:

• Double-bottle configuration

• Single-bottle configuration
  Interchangeable on demand.

Optional Short Nose Fin

If you ride at the very back of the saddle and prefer a fin that does not extend past the rear edge:

• Place your order as normal

• Add “short nose fin” in the order notes
  We customise it for your riding position.

Don't see your saddle listed?

Make sure you're signed up to our mailing list for new saddle releases

The purchase is for the Hydro-Gains Rear Bottle Holder Fin & Saddle Clamp Unit and does not include any saddles or bottle cage, it does come with elastics to help keep your bottles in place if required.

Individually fitted to each seat design !

Features & Benefits of EZ Hydro-Gains :

• Faster than no bottle and standard rear hydration setups
• Probably the fastest rear hydration system available.
• ISO/BSI Manufacture Accredited - Meeting all safety standards 
• Bottle position movement 0–25 degrees.
• Bottle position movement back and forward.
• Securely holds your hydration as well as adding extra watts.
• Interchangeable saddle mounts
• EZ to Rack 
• Manufactured for your seat – best fitting, will not move about.
• Securely holds bottle – added elastic pull for added security.
• Race number area.
• Double bottle mount available.
• Interchangeable Single / Double
  
• A great marker point for optimal position on seat
• 22cm x 9 cm
• 150g
  
• Ironman, World Triathlon, German Rules Legal, PTO Legal

Please check out our science page for more information.

"Ironman Triathlon and World Triathlon have confirmed that  EZ Hydro-Gains is legal to use in draft–illegal races and conforms to safety standards set out (BSI -ISO9001-ISO14001 5.03 Ironman (World Triathlon) exceeding the standards of a reputable safety standards organization (such as CPSC, ISO, or other equally reputable safety standards organizations)"

Email us your saddle information to be added to the waiting list.

Trade mark no: UK00004217827 Registered Designs UK,EU and US Patent Pending 30/034,780 - EZ Hydro-Gains Trade Marked ® Triathlon & Time Trial Approved-ISO BSI Manufacture Regulated to the highest 3D Print  Quality Standard

12 Month Warranty on a defective product - Please contact us if you have an issues.