Can I go straight from the Nike Pegasus 40 to the Pegasus 42 and skip the Pegasus 41?

Yes, but going Pegasus 40 to Pegasus 42 means taking one change in a single step: the Pegasus 41 is where the ride moved. Drop holds at 10 mm, so the difference is foam and fit rather than geometry: React foam with Zoom Air units under heel and forefoot to ReactX foam with a full-length curved Air Zoom unit.

How much did the weight change across these two updates?

0.5 oz on in total, 9.6 oz to 10.1 oz in a men's US 9. The Pegasus 41 took it to 10 oz first.

Is the Pegasus 41 the better buy than either of these?

On paper it splits them: 10 oz against 9.6 oz for the Pegasus 40 and 10.1 oz for the Pegasus 42, on a 37 mm heel and a $140 list price. Whether that is worth chasing depends on what the Pegasus 41 update actually did, which the section above works through.

Did the Pegasus get taller between the Pegasus 40 and the Pegasus 42?

Heel stack went 33 mm to 37 mm, by way of 37 mm on the Pegasus 41. Drop held at 10 mm throughout, so the extra foam sits under both ends.

Where does the Pegasus 42 sit in the Pegasus lineup now?

It is the current model, two versions on from the Pegasus 40 and the newest one you can buy at full retail.

Nike Pegasus 40 vs Pegasus 42

Two versions apart. Updated September 10, 2026. Specs are men's US 9.

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THE SHORT ANSWER

Two updates and 3 years separate the Nike Pegasus 40 from the Pegasus 42. Net change: 0.5 oz heavier, 4 mm more heel stack, a new midsole, $15 more at list. The Pegasus 41 is where the character changed, and that is the update Pegasus 40 owners notice first.

Nike Pegasus 40Men's at Amazon Women's
Nike Pegasus 42Men's at Amazon Women's

Availability last checked Sep 10, 2026. Prices and stock change without notice.

Pegasus 40 · 2023

Pegasus 42 · 2026

The two updates in between

Each step has its own page with the full change list and the verdict on that update.

Step 1Pegasus 40 to Pegasus 412024Changed character
Pegasus 40 vs 41 What replaced the Nike Pegasus 40?
Step 2Pegasus 41 to Pegasus 422026Refined, same shoe
Pegasus 41 vs 42 What replaced the Nike Pegasus 41?

Pegasus 40 vs Pegasus 42: every spec, side by side

The net of both updates. Per-update change notes stay on the step pages above, because they explain changes measured from a different starting point than this table uses.

Spec	Pegasus 40	Pegasus 42
FIT AND WEIGHT
Weight	9.6 oz	10.1 oz
Widths	D, 2E, 4E	D, 2E
Upper	Softer engineered mesh with a redesigned midfoot band	Redesigned engineered mesh on a more anatomical last with a roomier toebox
CUSHIONING GEOMETRY
Heel stack	33 mm	37 mm
Forefoot stack	23 mm	27 mm
Drop	10 mm	10 mm
MATERIALS
Midsole	React foam with Zoom Air units under heel and forefoot	ReactX foam with a full-length curved Air Zoom unit
VALUE
List price at launch	$130	$145

Or buy the Pegasus 41 instead?

The Pegasus 41 is worth a look only if you want the ride it introduced, because that is the update that changed the shoe. Buying it to soften the jump does not work: you would be adapting to the same change either way, just at an older spec.

Buy the Pegasus 41

Stocked at Amazon

Men's: Check price at Amazon Women's: Check price at Amazon

Availability last checked Jul 28, 2026.

Questions runners ask

Can I go straight from the Nike Pegasus 40 to the Pegasus 42 and skip the Pegasus 41?: Yes, but going Pegasus 40 to Pegasus 42 means taking one change in a single step: the Pegasus 41 is where the ride moved. Drop holds at 10 mm, so the difference is foam and fit rather than geometry: React foam with Zoom Air units under heel and forefoot to ReactX foam with a full-length curved Air Zoom unit.
How much did the weight change across these two updates?: 0.5 oz on in total, 9.6 oz to 10.1 oz in a men's US 9. The Pegasus 41 took it to 10 oz first.
Is the Pegasus 41 the better buy than either of these?: On paper it splits them: 10 oz against 9.6 oz for the Pegasus 40 and 10.1 oz for the Pegasus 42, on a 37 mm heel and a $140 list price. Whether that is worth chasing depends on what the Pegasus 41 update actually did, which the section above works through.
Did the Pegasus get taller between the Pegasus 40 and the Pegasus 42?: Heel stack went 33 mm to 37 mm, by way of 37 mm on the Pegasus 41. Drop held at 10 mm throughout, so the extra foam sits under both ends.
Where does the Pegasus 42 sit in the Pegasus lineup now?: It is the current model, two versions on from the Pegasus 40 and the newest one you can buy at full retail.