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Item # MAV0502

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Item # MAV0502


If you're looking for top-level triathlon shoes with every imaginable technological offering, the Mavic Tri Helium Shoes are the obvious choice. And lucky for you, Mavic understands that the winning recipe for triathlon shoes features a whole lot of comfort, sprinkled with an easy entry and exit, and a direct and efficient power transfer.

The Tri Helium uses Mavic's Energy carbon fiber SLR outsole. Not only does this design minimize weight, but with its rigid composition and low stack height, the carbon outsole experiences little energy loss during the transfer to the pedals. Additionally, Mavic mated the outsole with what it calls its Energy Frame Carbon SL Concept. Basically, you can think of this as an inlaid skeletal support over the longitude of the shoes' arch area. Not only does this carbon frame reduce the amount of material needed, but it also provides a greater level of lateral support, medial support, and foothold than traditional upper materials like leather or microfiber. And going even further into efficiency, Mavic also added its carbon fiber 3D heel counter. Now, the heel is secured above the calcaneous bone in order to eliminate heel slippage. Energy transmission is maximized throughout the shoe, but while using half of the weight than a traditionally injected heel counter.

Along the lines of comfort, you'll notice that the majority of the Tri Helium's uppers are comprised of a highly breathable mesh. This way, moisture is quickly evaporated after T1 and during your ride. You'll also find that Mavic incorporated its most sophisticated insole, the Ergo Fit SL. This insole features a three-layer construction that targets the dampening of ride vibration, moisture management, breathability, and antimicrobial protection.

For the entry and exit, Mavic understands that triathlon plays by another set of rules. Its hallmark ratcheting system and buckles aren't relevant to your discipline, so, Mavic incorporated its Ergo carbon SL strap, mated with a trimmable 'burrito-wrap' upper. What does this mean? Well, the Helium features an opening that runs over nearly the entire top of the shoe. The burrito analogy is drawn from its upper construction where one layer of the upper wraps over the other. This allows you to really dial in the volume of the shoe, whether it be for training or on-the-fly during a race. For your T1 transitions, the two-strap closure system is a breeze. The large top strap opens away from the drivetrain to allow a quick and seamless securing of the shoe. As for the bottom strap, you'll find that this is used less for transitions, and more left alone once you've established your desired volume and fit. However, the gripper tabs placement on the strap simplifies any adjustments that you might need to make from the saddle. To really speed up T1, Mavic has also included a durable pull-tab at the heel, and the burrito flap easily remains open from the point of setup to when you get out of the water.

The Mavic Tri Helium Shoes are available in the color Yellow Mavic and in whole and half sizes from 4.0 to 12.5.

  • Ergo SL Carbon Straps and Burrito-Wrap uppers
  • SLR carbon fiber outsoles
  • Energy Frame Carbon SL Concept
  • 3D heel counters
  • Ergo Fit SL insoles
  • Uppers made of highly breathable mesh

Tech Specs

Claimed Weight:
[size 8.5] 240 g
hook-and-loop straps
Upper Material:
[ventilation] mesh
Recommended Use:
carbon fiber
Manufacturer Warranty:
2 years
Cleat Compatibility:
3-hole road

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


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Here's what others have to say...

Avg. ride time: 0m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Good Shoe, needs toe guard

  • Familiarity:I've put it through the wringer

I've had these for about 1.5 years, and the fit and ventilation are superb. The only issue I have encountered is that the carbon sole wears quickly on my preferred dismount shoe as there is no plastic toe guard that is often found on Sidi and other brands. I have already developed a small hole through the carbon on my left toe from as that is my preferred foot to un-clip with when stopping. I have treated this with sealant to protect the integrity of the carbon, but am not sure how much longer they will last. If Mavic would have update the sole to address this issue, I would get another pair without hesitation, but at the moment am not sure if I want to spend $350 every two years on a pair of shoes.

I'm very interested in this shoe but the...

I'm very interested in this shoe but the vast majority of sizes have been out of stock for months. Specifically, US 11 or potentially 11.5. Will you have any of these or a bulk order coming in soon?

Hey Kris,

Thanks for the question and sorry we didn't get back to you sooner! Those items are on back-order currently and we are waiting for the vendor to send us more of those sizes. Because we are waiting on them in back-order it makes giving an approximate arrival date very difficult.

is the sizing in UK or US?

is the sizing in UK or US?

Hey Elliot,

The sizes shown are U.S. sizes. If you click on the sizing chart you can see how the U.S. sizes translate to U.K. and E.U. sizes, if needed.

Avg. ride time: 1h 16m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Do you have them in stock?

Do you have them in stock?

Yes these are in stock! Select the size you need from the drop down menu- the sizes you see displayed there are the sizes we have in stock. Once you add your item to your cart you will also be able to see how much inventory we have left in that specific size.

That's exactly what I did on November 8th when I placed an order for these. What I didn't know until I placed my order is that they were on back-ordered. I keep waiting... so others should double check the wait time before placing an order