SKU: 14686270261
gear optimizer

gear optimizer EZ® Triathlon Optimizer SL 22+ Watts – EZ Gains Ltd

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Description

gear optimizer EZ® Triathlon Optimizer SL 22+ Watts – EZ Gains LtdTo confirm EZ Gains products are designed, manufactured and tested in the UK and conform to safety regulations. BUNDLE PACKAGE EZ Disc Super Lite: EZ Disc Super Lite (light version) Carbon Chainring Guard Front Derailleur Guard CALF GUARDS & TOE Covers 22+ Watts 35 45Kph 20% Discount taken of RRP when you purchase the Optimizer. The Ultimate EZ Disc (Super Lite) this product has been wind tunnel tested, rolling tested at (Silverstone Sports

To confirm EZ Gains products are  designed, manufactured and tested in the UK and conform to safety regulations.

BUNDLE PACKAGE - EZ Disc Super Lite:

EZ Disc Super Lite (light version) / Carbon Chainring Guard / Front Derailleur Guard / CALF GUARDS & TOE Covers 22+ Watts 35-45Kph 20% Discount taken of RRP when you purchase the Optimizer.

The Ultimate EZ Disc (Super Lite) this product has been wind tunnel tested, rolling tested at (Silverstone Sports Engineering Hub) and is as fast as a top end disc wheel, also made from a polycarbonate mix. When combined with the correct wheel it can weigh the same as a disc wheel. The EZ Disc SL is 1/3 lighter then the original EZ Disc with the same aero benefits and takes less than 15 minutes to fit.

Aerodynamic rear disc wheel covers for road racing bicycles turn your wheel into a disc wheel and enjoy meaningful performance gains of two minutes plus over 90k.

Custom engineered to fit all makes and models of wheels, brakes, and rim depth options.

Save 2-3 Minutes over 90k by adding an EZ Disc to your wheel, regardless if the course is hilly or not, proven to be more stable in the wind check out our science page.


(Patent Authorise)®

BTF-CTT Legal / ITU - ETU / Ironman Legal / World Triathlon ISO Accredited. 

Incompatible Wheels & Alternative EZ Disc "check below incompatible wheels section and select the EZ Disc"

 

EZ Gains® Aero Chainring Guard (Patent Authorised)

To confirm EZ Gains products are  designed, manufactured and tested in the UK and conform to safety regulation.

Smooth the airflow through your chainring for EZ aerodynamic gains and protect your chainring.

Custom engineered to fit all chainring sizes, crankset arms, and power meters.

The Science "Press For Details"

  • Save 3-5 Watts
  • Weight 42 Grams (with tape)
  • Aerodynamic Performance Tested at the Silverstone Wind Tunnel
  • Made and Moulded in the UK 
  • Carbon 

Click on the link at the top of the page for fitting instructions. 

"Crank arm holes cut to width"

Includes everything needed to fit including 3M tape x 2 carbon tape also included to go on crank arm opening if you choose.

BTF-ETU-ITU Used in Ironman Pro races and CTT races.

Used across events by thousands of athletes at high level pro and amateur and has recently been inspected and passed at Ironman Frankfurt by a head official on a professional's bike, Ironman World Championships 2023, 2024, ITU World Championship 2023, 2024. ETU Champs 2023, 2024. National CTT races. Global Operations, Rules and Special Projects for Ironman confirmed he has no issues with the EZ Chainring Guard.

I would like to also confirm that the manufacturing of our products follows regulations: ISO14001 ISO9001.

Sizes may differ to give you the best fit. (EXAMPLE BELOW OF POWER METERS AND CHAINRINGS)

 

EZ Gains®Aero Front Derailleur Guard® (Patent Pending)

To confirm EZ Gains products are  designed, manufactured and tested in the UK and confirm to safety regulation.

"Avoid power failure due to weather conditions with the front derailleur guard, it has also been designed so that it protects derailleur from the wind throughout the whole range of movement".

Smooth the airflow of your front derailleur and save a massive 2-5.8 Watts across 30-50 kph.

On the 31st January 2023 at Silver Stone Sport Engineering Hub "wind tunnel" 

EZ Gains independently had the EZ FDG fully tested across YAW angles and 30/40/50kph wind speeds, and the results are out of the park.

50kph 5.8 Watts, 40kph 4 Watts, 30kph 2 Watts.

0 Yaw Watt Saving 30kph = 1.4 / 40kph = 4.1 / 50kph = 5.8

25 grams

Please see fitting Instructions on "fitting page" do not tighten above 3-4 NM.

Used in Ironman Triathlon, Kona, 70,3 World Champs, IM Euro Frankfurt, PTO Pro Field / BTF / ETU / ITU and inspected, Safety accredited & Patent Pending.

Front Derailleur Guard

This has also been in use across events by hundreds of athletes high level pro and amatuer and has recently been inspected and passed at Ironman Frankfurt by a head official on a professional's bike and Ironman World Championships 2024, ITU World Championship 2024, ETU Championships.

Available for DI2 11 Speed Models and 12 Speed Ultegra & Dura Ace DI2, SRAM, Shimano Mechanical.

 

EZ Gains Velotoze Calf Guards - FREE PART OF BUNDLE

EZ Gains introduces another EZ win, most calf guards are only aero based, but for enhanced performance and blood flow EZ Gains introduces the Velotoze Aero Compression Calf Guards.

ALL the aero gains but also the compression gains, we aero tested these in January 2023 and you are looking a significant gain of 5.5 watts.

Aero Leg Sleeves are designed to give you an aero advantage in triathlon and non-UCI time trial events. Advanced Aero fabric breaks up the flow of air and reduces aerodynamic drag. Active compression helps improve blood flow during running or riding while non-slip silicone dots keep the sleeves in place. They can be worn under a wet suit for a fast transition in triathlons.

SIZE

  • S/M is 26.5 cm tall, recommend for a person height less than 178 cm (5'10")
  • L/XL is 29.0 cm tall, recommend for a person height of 178 cm (5'10") or more

 

  • FEATURES AND BENEFITS
      • Aero: aero material reduces drag
      • Silicone grip: non-slip silicone grip dots keep sleeves up
      • Active compression: helps manage blood flow while riding or running
      • Compatible: designed to be worn alone or with Velotoze Short Shoe Covers
      • Greater coverage: these cover a larger area of the calves, not recommended for UCI events


    • MATERIALS

      • 87% polyester, 13% spandex


    • CARE INSTRUCTIONS

      • Machine wash cool on a gentle cycle with like colours. Hang dry. Do not machine dry. Do not iron. Do not bleach.

     

    EZ Velotoze Toe Covers - FREE PART OF BUNDLE

    Aero Toe Covers are a BIG advantage in triathlon, as they allow you to get aero gains but not having to invest in aero shoes.  EZGains tested using very aero shoes and it still gave a large gain, watts for cost these are bang on.  Also they do not effect the transition of the shoe in triathlon during flying mounts or putting on your shoes in transition.

    EZAero Toe Covers will save you - 2 watts "tests done on very aero shoes" if you have non-aero shoes we would expect this to double.

    Check out the science page for data.

    BTF-UCI-CTT Legal

        Shipping Notes
        • Free Standard Shipping on $100+ Orders to the USA.
        • Except Preorder products are shipped in 48 hours.
        • Delivery to the USA:
        1. Standard Shipping : 3-10 business days
        • If time is of the essence, please consider selecting expedited delivery for faster service.
        Exchange/Return Notes
        • We offer a 30-day return/exchange service after receiving.
        • Final sale items are not eligible for returns or exchanges.
        • To process your return/exchange, please contact us at [email protected]
        • Please click here for more details>>> Return & Exchange Policy
        SKU: 14686270261

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        4.4 ★★★★★
        Based on 23 reviews
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        K Soles
        Phoenix, US
        ★★★★★ 5
        Don’t pass these up!
        Size: 9, Color: (673) Tourmaline Pink/Summit White/Maroon Mist
        I’m 67 years old, 5’3” tall, and weigh 117 pounds. I bought these shoes to wear during my daily “walking workouts “. When I first tried the shoes on they seemed too firm but I decided to give them a try and I’m glad I did! The cushioning was excellent and there was ample toe room. The color of the shoes is the same as the picture - and is really pretty.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on February 8, 2026
        K
        Verified Purchase
        KR
        Battle Creek, US
        ★★★★★ 5
        Love them!
        Size: 10, Color: Enamel Blue/White/Illusion Green
        I love these shoes! Lightweight. Got a 10. True to size. My feet are a bit wide, and these are comfortable. I ordered another pair! Compared to shoe store prices, this was a deal.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on April 23, 2026
        C
        Verified Purchase
        Cristian Alexander Rocha Alvarez
        Waukegan, US
        ★★★★★ 5
        UA
        Size: 8, Color: (001) Black/Summit White/Castlerock
        Perfecto Fiel a la talla.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on June 9, 2026
        G
        Verified Purchase
        Grace W
        Whiting, US
        ★★★★★ 4
        Sturdy with Disappointing Details
        Size: 9.5, Color: (001) Black/Summit White/Castlerock
        They seem to be extremely comfortable, but I do worry about the quality in the long run. I wore these shoes one day indoors for 4 hours of kitchen work. The Under Armour logo is already almost gone from the inside of the shoe. I had a previous generation of the same shoe last several years with almost no visual quality decline. I hope this is not an indication of a cheap redesign that will fail in 6 months....... I might come back to update if there are major developments.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on February 11, 2026
        A
        Verified Purchase
        Ana Milena Pérez
        San Leandro, US
        ★★★★★ 5
        Tenis
        Size: 9.5, Color: (673) Tourmaline Pink/Summit White/Maroon Mist, Size: 9.5, Color: (673) Tourmaline Pink/Summit White/Maroon Mist
        Muy lindos, son livianos. Excelente servicio
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on June 8, 2026

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