Evidence-led comparison · not a wear test
Nike Pegasus 39 vs Nike Pegasus 40
There is not enough comparable, verified evidence to name a winner between Nike Pegasus 39 and Nike Pegasus 40. Use the historical values as research leads, then confirm the source and try the fit.
Nike Pegasus 39
Nike Pegasus 39 is catalogued for daily training. Its older specifications have not been reverified; treat this page as a starting point for research, not an independently tested recommendation.
Availability not verified
Specs and buying guide →Nike Pegasus 40
Nike Pegasus 40 is catalogued for daily training. Its older specifications have not been reverified; treat this page as a starting point for research, not an independently tested recommendation.
Availability not verified
Specs and buying guide →Specifications at a glance
Historical values are labeled, not newly verified. Prices are snapshots—not MSRP or live offers. Higher stack, lower weight and carbon construction do not establish a better shoe.
| Specification | Nike Pegasus 39Historical · verify first | Nike Pegasus 40Historical · verify first |
|---|---|---|
| Intended category | daily training | daily training |
| Weight | 9.8 oz | 9.9 oz |
| Heel stack | 33 mm | 33 mm |
| Forefoot stack | 23 mm | 23 mm |
| Heel-to-toe drop | 10 mm | 10 mm |
| Recorded price | 130 USD | 130 USD |
| Stability category | neutral | neutral |
| Cushioning category | medium | medium |
| Carbon reinforcement | No | No |
| Performance foam category | No | No |
| Availability | Availability not verified | Availability not verified |
What the measurements actually change
Weight
Pegasus 39: 9.8 oz; Pegasus 40: 9.9 oz. At least one record is historical or lacks comparable source evidence; do not treat this as a verified difference.
Heel stack
Pegasus 39: 33 mm; Pegasus 40: 33 mm. At least one record is historical or lacks comparable source evidence; do not treat this as a verified difference.
Forefoot stack
Pegasus 39: 23 mm; Pegasus 40: 23 mm. At least one record is historical or lacks comparable source evidence; do not treat this as a verified difference.
Drop
Pegasus 39: 10 mm; Pegasus 40: 10 mm. At least one record is historical or lacks comparable source evidence; do not treat this as a verified difference.
When to shortlist Pegasus 39
Nike Pegasus 39 is catalogued for daily training. Consider it for the regular easy runs that make up most of your week. Try it at your usual easy pace; an appealing specification sheet cannot establish whether the upper, heel hold and ride suit you.
When to shortlist Pegasus 40
Nike Pegasus 40 is catalogued for daily training. Consider it for the regular easy runs that make up most of your week. Try it at your usual easy pace; an appealing specification sheet cannot establish whether the upper, heel hold and ride suit you.
Is the newer version worth upgrading to?
Both belong to Pegasus. Start with what you want to change about your current pair: fit, intended use or a specific construction detail. Read each source-linked model overview below for documented changes. Older or unpublished specifications prevent a complete like-for-like upgrade claim. If your current shoe works well, a new version number alone is not a reason to replace it.
Price and value—not a live deal comparison
Pegasus 39: 130 USD; Pegasus 40: 130 USD. These are recorded offers, potentially from different dates, colors or clearance periods. They are not necessarily launch prices. Check both source links for matching size/width, current price and return policy before deciding which offers better value.
What this comparison cannot establish
We have not independently measured fit, outsole grip, energy return, comfort or durability for this pair. The absence of a rating is not a poor score. No universal winner, injury-prevention claim or race-time improvement is inferred from carbon construction, foam classification or stack height.
Questions before buying
Which is better: Nike Pegasus 39 or Nike Pegasus 40?
There is not enough comparable, verified evidence to name a winner between Nike Pegasus 39 and Nike Pegasus 40. Use the historical values as research leads, then confirm the source and try the fit.
Which of these shoes is lighter?
Pegasus 39: 9.8 oz; Pegasus 40: 9.9 oz. At least one record is historical or lacks comparable source evidence; do not treat this as a verified difference.
Should I upgrade within the Pegasus series?
Both belong to Pegasus. Start with what you want to change about your current pair: fit, intended use or a specific construction detail. Read each source-linked model overview below for documented changes. Older or unpublished specifications prevent a complete like-for-like upgrade claim. If your current shoe works well, a new version number alone is not a reason to replace it.
Are the listed prices and availability current?
Pegasus 39: Availability not verified. Pegasus 40: Availability not verified. Pegasus 39: 130 USD; Pegasus 40: 130 USD. These are recorded offers, potentially from different dates, colors or clearance periods. They are not necessarily launch prices. Check both source links for matching size/width, current price and return policy before deciding which offers better value.
Is this a hands-on review?
Specification-based buying guidance, not a hands-on review. Running Warehouse is our primary specification source. Categories and buying considerations are editorial interpretations, not measured performance. We do not invent comfort scores, durability mileage, fit tests or race-time gains.
Sources, checks and editorial standards
Specification-based buying guidance, not a hands-on review. Running Warehouse is our primary specification source. Categories and buying considerations are editorial interpretations, not measured performance. We do not invent comfort scores, durability mileage, fit tests or race-time gains.
Nike Pegasus 39
Historical data · not reverified
No verification date recorded.
Measurement size and source comparability not verified.
- Historical catalog record: recheck every measurement and price against a current retailer or manufacturer listing before a buying decision.
- Existing generated scores and mileage estimates are not evidence and are not published as measured facts.
A source citation is not available for this record.
Nike Pegasus 40
Historical data · not reverified
No verification date recorded.
Measurement size and source comparability not verified.
- Historical catalog record: recheck every measurement and price against a current retailer or manufacturer listing before a buying decision.
- Existing generated scores and mileage estimates are not evidence and are not published as measured facts.
A source citation is not available for this record.
Published by RunAnalytics. Sources are checked on the dates shown, not continuously. Spot an error? Send the model, disputed field and a source link. We retain older records for comparison, but do not label them as newly verified.