Written by

Brandon Law

Marathon Runner and Shoe Expert
The Pegasus is Nike's crowdpleaser- its neutral workhorse capable of almost any run. The Cumulus is Asics' version of the Pegasus- a dependable everyday trainer. Here we will be comparing the two shoes.
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The Nike Pegasus, now in its 40th iteration, is equipped with a React midsole, a light and breathable mesh and thick forefoot and heel Zoom Air units.

The Asics Cumulus, in its 26th iteration is equipped with a dual density FlyteFoam midsole, a 3D printed upper and a hidden heel gel unit. The Cumulus is $10 more than the Pegasus. Which is the right shoe for you?

Similarity and differences: Air Zoom Pegasus 40 vs Gel Cumulus 26

Air Zoom Pegasus 40

Brand
Expert score
Expert score
7/10
Expert score
8/10
Weight
9.4 oz
8.9 oz
Heel Drop
10 mm
8 mm
Verdict
The Nike Air Zoom Pegasus 40 is a daily trainer with a stable ride and durable build. It doesn't have a particularly fun or lively ride but it has a comfortable fit with no major weaknesses. It's best suited to short or middle-distance easy runs. Version 40 is only an upper update which makes the shoe more comfortable but heavier. It isn't a substantial update so it's not a major improvement over the Pegasus 39.
The Asics Gel-Cumulus 26 is a cushioned daily trainer that is an everyday shoe for most runners of all abilities. It has a great rocker ride that is both smooth and soft. The heel tab can rub the back of your ankle, though, which would definitely bother some people.
Recommended for
Daily training
Daily training
Cushioning type
Balanced
Responsive/balanced
Cushioning amount
Medium cushioning
Medium cushioning
Flexibility
flexible
rigid
Stability
very stable
some stability
Sizing
true to size
true to size
Retail price
US$130
US$139.95

Sole unit: Air Zoom Pegasus 40 vs Gel Cumulus 26

The Pegasus is and has always been a Swiss army knife. Its versatility makes it capable of handling long runs, tempo runs and everyday runs. The React based midsole of the Pegasus is light and provides deep cushioning for longer runs when your feet need protection. Zoom Air bags are situated in the forefoot and heel which provides a nice “pop” on toe-off.

The Cumulus has a single-foam midsole setup comprising of FF Blast+. It has a medium-soft, cushioned ride experience which is not too firm or too mushy. There is a gel unit in the heel (hidden) to absorb impact. The difference between the two midsoles is that the Cumulus has a lower density midsole which translates to a softer ride than the Pegasus.

Ride transitions are smoother on the Cumulus than the Pegasus. The forefoot air bag in the Pegasus can be felt underfoot whereas the gel unit of the Cumulus can’t be felt.

Stability in both shoes is great because their midsoles are not overly soft but the Pegasus is more stable due to its firmer midsole.

A new, rubberised EVA layer is on the outsole of the Cumulus. This results in more ground feel but less durability.

The Pegasus uses Duralon blown rubber on its outsole in the forefoot and a BRS1000 rubber lateral crash rail to absorb impact. The Pegasus has the more durable outsole.

Upper unit: Air Zoom Pegasus 40 vs Gel Cumulus 26

The upper of the Pegasus is made from an engineered sandwich mesh. It has a long, padded tongue and it is sleeved so there is no tongue slide. The heel counter of the Pegasus flares away from the Achilles to not irritate and foot lockdown is good. The forefoot of the Pegasus is accommodating but the shoe is available in additional narrow, regular, wide and extra wide versions if you need them.

The Cumulus has a thicker and more padded upper than the Pegasus. Its heel counter is soft and filled with generous amounts of foam. The Cumulus’s upper is superb at locking the foot down with zero heel slippage. The Cumulus comes in regular, wide and extra wide versions.

Which one to buy: Air Zoom Pegasus 40 vs Gel Cumulus 26

If you’re a runner looking for an everyday neutral shoe which has a comfortable upper, the Cumulus is the shoe for you. The upper of the Cumulus is supremely comfortable with a padded heel collar and smooth inside lining that locks the heel in place with no slippage. The FF Blast+ midsole of the Cumulus shines on long runs when you need cushioning and comfort in spades.

If you’re a runner looking for a more versatile everyday neutral trainer, get the Pegasus. The Pegasus can handle long runs as well as tempo runs with extra responsiveness coming from its thick forefoot and heel Zoom Air units. The upper of the Pegasus is stripped down compared to the Cumulus and the heel is not as secure but it’s the more stable and lighter shoe.

This expert review is written by

Brandon Law

Marathon Runner and Shoe Expert
Brandon is a South African who lives and trains in Malaysia. He is a marathon runner who eats, sleeps and dreams running shoes. While most people wear shoes to run, he runs to wear shoes.