ShoeGeometry

Nike Pegasus 42 vs Nike Pegasus 41

What changed from the Nike Pegasus 41: stiffness stiffer, rocker apex starts later, foam changed. Each cell carries a provenance badge; open a shoe for sources.

Nike Pegasus 42: heel 37 mm, forefoot 27 mm (drop 10 mm); rocker apex 68 % of length, radius 47 % of length.Nike Pegasus 42: rocker apex at 68 % of lengthNike Pegasus 41: heel 37 mm, forefoot 27 mm (drop 10 mm); rocker apex 63 % of length, radius 69 % of length.Nike Pegasus 41: rocker apex at 63 % of length
  • Nike Pegasus 4237/27 mm · apex 68 %
  • Nike Pegasus 4137/27 mm · apex 63 %
Midsoles drawn from measured values on a common length (290 mm), heels aligned, toe to the left; dots mark the rocker apex. Dotted lines use typical values where a shoe has no measurement. Exact values are in the table below.

What changed

MeasureNike Pegasus 41Nike Pegasus 42Change
Heel stack37 mm37 mmabout the same
Forefoot stack27 mm27 mmabout the same
Drop10 mm10 mmabout the same
Rocker apex62.5% of length67.9% of lengthstarts later (+5.4 %)
Toe tip over ground34 mm32.9 mmabout the same
Rocker rise angle19.3°21.3°about the same
Stiffness7/10035/100stiffer (+28)
Firmness57/10066/100about the same
Forefoot base width115.6 mm112.3 mmnarrower (−3.3 mm)
FoamReactX, dual Air Zoom unitsReactX + ZoomX, full-length Air Zoom unitchanged

Compared with the previous version in this catalogue. Differences within measurement noise are shown as about the same. All version changes

MetricNike Pegasus 42
Daily trainer · Road
Nike Pegasus 41
Daily trainer · Road
Heel-to-toe drop10 mmStated10 mmStated
Heel stack37 mmStated37 mmStated
Forefoot stack27 mmStated27 mmStated
Weight300 gStated—
Rocker apex67.9 %est.62.5 %est.
Rocker radius47 %est.69 %est.
Rocker rise angle21 degest.19 degest.
Toe tip over ground33 mmest.34 mmest.
Rocker angle at toe53 degest.48 degest.
Visible rocker lift onset79 %est.76.4 %est.
Toe spring (relative)15.3 %est.14.1 %est.
Midsole width (forefoot)112.3 mmMeasured115.6 mmMeasured
Midsole width (heel)88.1 mmMeasured89.2 mmMeasured
Interior forefoot width96.5 mmMeasured94.6 mmMeasured
Toebox width72.3 mmMeasured72.9 mmMeasured
Longitudinal stiffness35Derived7Derived
Midsole firmness66Derived57Derived
PlateNo plateNo plate
Primary foamReactX + ZoomX, full-length Air Zoom unitReactX, dual Air Zoom units
List price$145—

Key differences

  • Heel-to-toe drop is about the same: 10 mm for Nike Pegasus 42, 10 mm for Nike Pegasus 41.
  • Heel stack is about the same: 37 mm for Nike Pegasus 42, 37 mm for Nike Pegasus 41.
  • Forefoot stack is about the same: 27 mm for Nike Pegasus 42, 27 mm for Nike Pegasus 41.
  • Nike Pegasus 42's rocker onset is 79 % of length, 3 % of length later than Nike Pegasus 41's 76 % of length.

Nike Pegasus 42 details · Nike Pegasus 41 details · Add more shoes

Nike Pegasus 42 vs Pegasus 41: what changed