Nike Air Zoom Pegasus 40 Review

Nike Air Zoom Pegasus 40

The Nike Air Zoom Pegasus 40 is a dependable everyday trainer that is best suited to short or middle distance easy runs. Surprisingly, Nike has kept it very simple in terms of the updates compared to the previous Pegasus 39, which consist of an upper update only. The primary focus has been on enhancing the upper, resulting in an even more pleasant and roomier fit. However, it’s essential to mention that this improvement comes at a price – a slightly increased weight compared to its predecessor.

Table of Contents

Pros

  • Improved upper comfort and fit
  • Durable outsole
  • Stable ride
  • No price increase 

Cons

  • No energy return
  • Weight increase 

Specifications

Brand – Nike
Model – Air Zoom Pegasus 40
Family – Pegasus
Previous Model – Air Zoom Pegasus 39
Type – Cushioning
Weight – 266g (9.4oz)
Heel – 33mm
Toe – 23mm
Drop – 10mm
Carbon plate – No
Sizing – True to size
Usage – Daily training

Nike Air Zoom Pegasus 40 First Impression

Before even taking a step, I noticed the more comfortable fit and feel of the shoe. It was softer, more padded, with the feeling of a more spacious toe box. Compared to the Pegasus 39, this enhanced comfort is a standout feature. 

Nike Air Zoom Pegasus 40 first impression

Nike Air Zoom Pegasus 40 Upper

You can definitely notice the difference in the upper units of the Pegasus 40 and the Pegasus 39. Nike has made two prominent changes to the mesh and flywire systems of the shoe.

The Pegasus 40 incorporates a softer and more elastic mesh material, resulting in the feel of an expanded and more comfortable forefoot and toe box area, while still remaining true to size.

The flywire system has been adapted to incorporate panels to aid in better midfoot lockdown, making the shoe slightly heavier, weighing in at 266g (9.4oz). Whereas the Pegasus 39 weighted in at 261g (9.2oz). However, I found the extra weight insignificant. 

Nike has also remained true with the internal heel counter and fully gusseted tongue as seen in the Pegasus 39. Additionally, thin, vertical reflective strips have been incorporated onto the back of the heel, adding a safety element for runners venturing out in low-light conditions.

Nike Air Zoom Pegasus 40 upper

Nike Air Zoom Pegasus 40 Midsole Unit

One thing you can rely upon is the consistency of the Pegasus. There’s not much difference in the ride of this shoe compared to previous versions, which is unsurprising as the sole unit has not changed. The midsole, is a combination of Zoom airbags in the heel and forefoot, along with React foam. 

As in previous models, Nike has stayed consistent with the Zoom airbag in the heel and forefront of the shoes. The midsole is comprised of React foam which is durable and slightly firmer than other Nike foams. The React foam has to be firm and have a similar density to the airbags, so you have a smooth sole with no lumps felt while running. This generally creates a firmer feel than other more cushioned shoes, but also makes the shoes more durable so you might be able to get a few more kilometres out of them.

Nike has been more consistently utilising ZoomX foam in their midsoles and I am surprised they haven’t made the change in the Pegasus as yet. ZoomX was first developed for performance footwear in the Zoom Vaporfly Elite and 4%. It is described by Nike as “lighter, softer and more responsive Nike foam, designed to maximise speed by delivering up to 85% greater energy return”. Who knows, maybe we’ll see this in the future releases.

The Zoom Air makes it a firm but comfortable ride for those easy runs. Anything faster though, and I would recommend switching it up to something with a little more bounce and greater energy return. I personally found I was putting in a lot more effort when increasing the pace compared to other trainers. This is because the Pegasus 40 does not have any rockered geometry or energy-returning midsole technologies to make it more energy-efficient.  

Nike Air Zoom Pegasus 40 midsole

Nike Air Zoom Pegasus 40 Outsole Unit

Again, unchanged is the outsole which is comprised of solid BRS 1000 on the heel and dense Duralon on the forefoot. This design ensures that you can confidently pile on the kilometres before any signs of wear appear. I have worn mine up to 500km and would be confident they would be able to maintain more. The hardy rubber compound, coupled with the waffle grip pattern, guarantees exceptional traction on various surfaces, making it a versatile choice for different terrains.

Nike Air Zoom Pegasus 40 outsole

Nike Air Zoom Pegasus 40 Conclusion

In conclusion, the Nike Air Zoom Pegasus 40 continues to earn its reputation as a dependable choice for daily training. While it may not introduce groundbreaking innovations, its commitment to comfort, durability, and a consistent ride ensures it remains a top contender for those slower, easy runs. This shoe is best suited for runners looking to tackle short to middle-distance easy runs with comfort and consistency.

It might suit those who are already accustomed to the Pegasus’s ride or those seeking a comfortable and versatile shoe that they can switch up between running, gym and everyday life. Most daily trainers are moving in the direction of more cushioning, energy return and versatility, however the fact Nike has kept true to it’s previous Pegasus versions makes it more of a standout in the field.

If you’re expecting a significant standout difference from the Pegasus 39 you will most likely be disappointed. I wouldn’t be rushing to upgrade if you are happy with your current 39 version. But if you prefer a firm ride and looking for a versatile shoe then they are a reasonable option. 

We purchased these shoes with our own money from Nike.

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