ShoeGeometry

Saucony Endorphin Speed 5 vs Saucony Endorphin Speed 4

What changed from the Saucony Endorphin Speed 4: firmness firmer, rocker apex starts earlier, forefoot base width wider. Each cell carries a provenance badge; open a shoe for sources.

Saucony Endorphin Speed 5: heel 36 mm, forefoot 28 mm (drop 8 mm); rocker apex 64 % of length, radius 38 % of length.Saucony Endorphin Speed 5: rocker apex at 64 % of lengthSaucony Endorphin Speed 4: heel 36 mm, forefoot 28 mm (drop 8 mm); rocker apex 67 % of length, radius 40 % of length.Saucony Endorphin Speed 4: rocker apex at 67 % of length
  • Saucony Endorphin Speed 536/28 mm · apex 64 %
  • Saucony Endorphin Speed 436/28 mm · apex 67 %
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

MeasureSaucony Endorphin Speed 4Saucony Endorphin Speed 5Change
Heel stack36 mm36 mmabout the same
Forefoot stack28 mm28 mmabout the same
Drop8 mm8 mmabout the same
Weight233 g237 gabout the same
Rocker apex66.7% of length63.8% of lengthstarts earlier (−2.9 %)
Toe tip over ground38.6 mm40.1 mmabout the same
Rocker rise angle29.3°28.6°about the same
Stiffness29/10026/100about the same
Firmness71/10093/100firmer (+22)
Forefoot base width114.7 mm118.1 mmwider (+3.4 mm)

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

MetricSaucony Endorphin Speed 5
Tempo · Road
Saucony Endorphin Speed 4
Tempo · Road
Heel-to-toe drop8 mmStated8 mmStated
Heel stack36 mmStated36 mmStated
Forefoot stack28 mmStated28 mmStated
Weight237 gStated233 gStated
Rocker apex63.8 %est.66.7 %est.
Rocker radius38 %est.40 %est.
Rocker rise angle29 degest.29 degest.
Toe tip over ground40 mmest.39 mmest.
Rocker angle at toe59 degest.59 degest.
Visible rocker lift onset76.1 %est.77.7 %est.
Toe spring (relative)18.6 %est.18.9 %est.
Midsole width (forefoot)118.1 mmMeasured114.7 mmMeasured
Midsole width (heel)95 mmMeasured93.4 mmMeasured
Interior forefoot width93.8 mmMeasured96.9 mmMeasured
Toebox width72.9 mmMeasured69.9 mmMeasured
Longitudinal stiffness26Derived29Derived
Midsole firmness93Derived71Derived
PlateNylon plateNylon plate
Primary foamPWRRUN PBPWRRUN PB
List price$175$170

Key differences

  • Heel-to-toe drop is about the same: 8 mm for Saucony Endorphin Speed 5, 8 mm for Saucony Endorphin Speed 4.
  • Heel stack is about the same: 36 mm for Saucony Endorphin Speed 5, 36 mm for Saucony Endorphin Speed 4.
  • Forefoot stack is about the same: 28 mm for Saucony Endorphin Speed 5, 28 mm for Saucony Endorphin Speed 4.
  • Weight is about the same: 237 g for Saucony Endorphin Speed 5, 233 g for Saucony Endorphin Speed 4.
  • Rocker onset is about the same: 76 % of length for Saucony Endorphin Speed 5, 78 % of length for Saucony Endorphin Speed 4.

Saucony Endorphin Speed 5 details · Saucony Endorphin Speed 4 details · Add more shoes