Product Colors and Sizes

  • Black Friday product
  • New Deal product
  • Cyber Monday product
  • Sale product
  • Best Seller product
  • Ecodesign product
  • New product
  • Staff Pick product
  • In The News product
  • Innovation product
  • product

Aptonia Triathalon Aluminum Handlebar Extentions

Sale price: $59.99 Regular price:

Improved efficiency and comfort during the cycling portion in your long-distance triathlons.

Color: Select a color
Size: Select a size
Sale price: $59.99 Regular price:

Free shipping over $35

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8515713

Product Videos

Product Features

A photo of the Aptonia Triathalon Aluminum Handlebar Extentions in use

Aptonia Triathalon Aluminum Handlebar Extentions | Our team of triathlon enthusiasts designed these extenders for triathletes looking for a more efficient position when cycling long distances.

Improved efficiency and comfort during the cycling portion in your long-distance triathlons.

Optimized posture

You can adjust the length of the handlebars as well as the arm rests.

User comfort

5 mm thick foam arm rests 40° angle for natural handling

Easy assembly/dismantling

Accessible screws Bar graduations Fits 31.8 and 26 mm diameter handlebars


Aluminum 6061 1.1 lbs

Product Customer Reviews

Skip to reviews
376 Reviews
Write a Review 

Aptonia Triathalon Aluminum Handlebar Extentions,black
Filtered by reviews Loading reviews…
Good affordable clip on aero bars

Very worth it for someone looking for affordable aero bars. Comfortable, easy to set up and remove if needed.

icon-circle-checkmark verified purchase
Very good!

Very comfortable to ride on and very adjustable. Great value for money!

icon-circle-checkmark verified purchase
Missing one critical feature: height adjustment

The construction quality is fine, and most of the ergonomic adjustments are present... except the most critical one: height. I cannot see a way to adjust the height of the aero bars relative to the bars they are mounted to. I do not see any option for an accessory riser on the Decathlon store either.

icon-circle-checkmark verified purchase
Tri bars

Fully adjustable and found my position easily.nice and comfy too

icon-circle-checkmark verified purchase
Tri Bars

Easy to assemble, great product.

icon-circle-checkmark verified purchase
Great quality handlebars

Great quality and good value. Easy to setup and dismantle after watching the instruction video.

icon-circle-checkmark verified purchase

This is an excellent product at this price point. This one is high in utility and is very much adjusting

icon-circle-checkmark verified purchase
Solid bit of kit - good value for money

Solid bit of kit - good value for money

Ajust the hight?

Hi, question rather than review, can the hight of the pads be adjusted??

TT Bars

Great product and price. First class service and delivery. I would buy from Decathlon again for sure.

icon-circle-checkmark verified purchase
Very good value, very adjustable, adding bar tape

Fitted these to my mountain bike for long road trips. They're very adjustable and I love the fact that the arm rests are adjustable independently of the bars. I set them up according to the excellent video, then took an allen key with me out on a ride. I found I needed to move the arm rest pads outward one notch for comfort. Very pleased with these for the price. The metal spacers have serrations on both sides, which give good grip, but WILL leave marks on your handlebars. That didn't bother me on a 10-year-old MTB. But if it was on an expensive bike, I'd swap those out for something rubbery, or put a piece of old inner tube inside first. I rode a 55 mile route yesterday and was on these for 95% of the time. One of my hands slipped off once when I went over a bump, so I'm going to put some bar grip tape on the ends for comfort and safety. They do the job well and they're a good price.


Wrap the head will be better since its bit slippery

Hello Taz Shing,

Thank you for supporting our product. We appreciate your insight and feedback as you motivate us to strive for outstanding product quality.

We are looking forward to seeing you again.

Thank you again for your support. 

Stay healthy. 


Fish Yee

Decathlon Hong Kong Cycling Team

Fish Yee


They fitted well on my Grandurance 4. The aerobar design has an allowance for ton of positions. So you can play with the fitment till you get the one that you desire.

icon-circle-checkmark verified purchase


icon-circle-checkmark verified purchase

It is good for long distance with great comfort. One suggestion it should given when selling with fitment to cycle. That was not given by store

icon-circle-checkmark verified purchase
Skip to reviews

Additional Product Information



  • 100% Aluminium 6061


  • 100% Polypropylene


  • 100% Aluminium 6061


  • 100% Ethylene vinyl acetate

Why use extenders in a triathlon?

So you can become a real triathlete of course! That could have been the answer for this emblematic product, but we offer you another approach. On smooth routes, we recommend opting for extenders so you can vary your position as well as improve efficiency as soon as you find the right adjustment and you can hold this position for a long time.

How to find the right position with the extenders

Your position should be as natural as possible, even if you have to make an effort to relax into it to start with (shoulders and neck). We recommend finding an adjustment that allows you to have your elbows resting on the arm rests with a 90° angle between the arm and the forearm. Your hand should fall naturally on the end of the bars for a natural grip. You will probably have to bring your saddle forward on its clamp and perhaps shorten your stem.

Are extenders allowed in the triathlon?

Extenders are authorized in triathlons when drafting (cycling while sheltered by another triathlete) is forbidden. We advise checking the regulations for your race, which generally specify this. As a general rule, extenders are forbidden for short-distance triathlons (super sprints, sprints) and authorized for middle to long-distance triathlons (from Olympic distances).

What level do you need to have to use extenders?

No particular level, quite the opposite in fact! We especially recommend finding the adjustment that lets you use your extenders over prolonged periods without worrying about aches. Consequently, you will gain in speed or reduce fatigue so you can take on the running portion in the best possible conditions.




2 years Pads available as spare parts (ref: 8554347)

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual