ShoeGeometry

Saucony Endorphin Speed 6

TempoRoadNylon plate2026Men'sCurrent

At a glance

Heel-to-toe drop
8 mmStated
Stack, heel / forefoot
38 / 30 mmStated
Weight
230 gStatedsize 9
Plate
Nylon plate
Toe rocker
31 % of lengthest.photos 30–32 %
Heel bevel
16.5 % of lengthest.rough estimate; photos 14–17 %
Stiffness / firmness
not measured yet
Primary foam
PWRRUN PBX (beaded PEBA)

How it compares

  • Saucony Endorphin Speed 6's heel-to-toe drop is 8 mm, higher than the catalogue median of 6 mm (59% of the 179 other current shoes are lower).
  • Saucony Endorphin Speed 6's heel stack is 38 mm, about the catalogue median of 38 mm (43% of the 176 other current shoes are thinner).
  • Saucony Endorphin Speed 6's forefoot stack is 30 mm, thinner than the catalogue median of 31.5 mm (33% of the 171 other current shoes are thinner).
  • Saucony Endorphin Speed 6's weight is 230 g, lighter than the catalogue median of 269 g (17% of the 167 other current shoes are lighter).
  • Against the Saucony Endorphin Speed 5: stack higher (details).
  • 4 shoes with similar geometry from other lines.

Differences smaller than the precision of the sources (about 1 mm of stack, 8 g, or the spread between photos for photo estimates) are reported as about the same.

Specifications

Heel-to-toe drop
Manufacturer stated
8mm
MediumSpec listingbrand figure, reported by Doctors of Runningsource
Heel stack
Manufacturer stated
38mm
MediumSpec listingbrand figure, reported by Doctors of Runningsource
Forefoot stack
Manufacturer stated
30mm
MediumSpec listingbrand figure, reported by Doctors of Runningsource
Weight
Manufacturer stated
230g
MediumSpec listingbrand figure, reported by Doctors of Runningsize 9source
Plate
Nylon plate
Primary foam
PWRRUN PBX (beaded PEBA)
List price
$180

Geometry

Catalogue average: heel 38 mm, forefoot 32 mm, toe rocker 35 %Saucony Endorphin Speed 6: heel 38 mm, forefoot 30 mm (drop 8 mm); toe rocker 31 % of length, radius 35 % of length; heel bevel 17 % of length, 26 mm high at the back, reaching in front of the heel bone (the sole still curves up under it: a heel rocker).38 mm30 mmUnder the centre of the heel bone: 12 % of length from the heel, where heel stack is measuredheel boneHeel contact: the sole is within 4.5 mm of the ground from 17 % of length (foam compresses more under load), reaching in front of the heel bone (the sole still curves up under it: a heel rocker)heel bevel 17 %Toe rocker: the front 31 % of the length curves up (the curve leaves the ground 69 % of length from the heel)toe rocker 31 %toeheel
Front: toe rocker shorter longerRear: heel stack lower higher not measured
Dashed: average of the catalogue
Illustrative profile, not a photograph or scan: drawn to scale for a 300 mm shoe from published stack heights and photo estimates of the unloaded shoe (under body weight the foam compresses and the curves flatten). The grey upper is a generic outline, not this shoe’s. Saucony Endorphin Speed 6: heel 38 mm, forefoot 30 mm (drop 8 mm); toe rocker 31 % of length, radius 35 % of length; heel bevel 17 % of length, 26 mm high at the back, reaching in front of the heel bone (the sole still curves up under it: a heel rocker). Heel bone: 12 % of length from the heel, where heel stack is measured. Heel bevel and toe rocker are marked where each curve meets the ground; for the heel that is where the sole comes within 4.5 mm of the ground, which foam compression closes under body weight.

Percent values are relative to shoe length so they compare across images and sizes; widths in millimetres are lab measurements from the cited source, while toe tip and heel heights in millimetres are photo estimates converted for a men’s US 9 (assumed 300 mm long), so approximate. See how rocker geometry is defined.

Toe rocker
AI estimated
31%

4 photos range 30–32 %; shown is their median.

MediumSide photosource
Rocker radius
AI estimated
35%

4 photos range 32–35 %; shown is one of the two that agree most closely.

MediumSide photosource
Rocker rise angle
AI estimated
31deg

4 photos range 30–33 deg; shown is their median.

MediumSide photosource
Toe tip over ground
AI estimated
43mm*

4 photos range 40–45 mm; shown is their median (* the photos disagree by more than usual).

MediumSide photosource
Rocker angle at toe
AI estimated
53deg

4 photos range 53–64 deg; shown is one of the two that agree most closely.

MediumSide photosource
Visible rocker lift onset
AI estimated
79.5%

4 photos range 78.7–80.4 %; shown is one of the two that agree most closely.

LowSide photosource
Toe spring (relative)
AI estimated
19.2%

4 photos range 17.9–19.5 %; shown is their median.

MediumSide photosource
Heel bevel length
AI estimated
16.5%*

4 photos range 13.5–16.7 %; shown is the average of the two that agree most closely (* the photos disagree by more than usual).

LowSide photosource
Heel bevel height
AI estimated
26mm

4 photos range 25–28 mm; shown is the average of the two that agree most closely.

MediumSide photosource
Toe box shape
AI estimated
76%

2 photos range 76–76 %; shown is the average of the two that agree most closely.

LowTop photosource

How it compares

Appears in:Lightweight

Compare:Saucony Endorphin Speed 6 vs Saucony Endorphin Speed 5Saucony Endorphin Speed 6 vs Adidas Adizero Boston 13Previous version: Saucony Endorphin Speed 5

What changed from the Saucony Endorphin Speed 5

Stack higher. Compared with the previous version in this catalogue; differences within measurement noise are shown as about the same.

heel boneSaucony Endorphin Speed 6: heel 38 mm, forefoot 30 mm (drop 8 mm); toe rocker 31 % of length, radius 35 % of length; heel bevel 17 % of length, 26 mm high at the back, reaching in front of the heel bone (the sole still curves up under it: a heel rocker).Saucony Endorphin Speed 6: toe rocker 31 % of lengthSaucony Endorphin Speed 5: heel 36 mm, forefoot 28 mm (drop 8 mm); toe rocker 33 % of length, radius 38 % of length; heel bevel 12 % of length, 21 mm high at the back, ending about under the heel bone.Saucony Endorphin Speed 5: toe rocker 33 % of length
  • Saucony Endorphin Speed 638/30 mm · toe rocker 31 % · heel bevel 17 %
  • Saucony Endorphin Speed 536/28 mm · toe rocker 33 % · heel bevel 12 %
Illustrative profiles, not photographs: drawn from published stack heights and photo estimates of the unloaded shoes on a common length (300 mm), heels aligned, toe to the left; dots mark where each toe rocker starts; the dotted vertical line is under the heel bone (12 % of length), so a heel curve reaching past it is a bevel in front of the heel bone. Dotted lines use typical values where a shoe has no measurement. Exact values are in the table below.
MeasureSaucony Endorphin Speed 5Saucony Endorphin Speed 6Change
Heel stack36 mm38 mmhigher (+2 mm)
Forefoot stack28 mm30 mmhigher (+2 mm)
Drop8 mm8 mmabout the same
Weight237 g230 gabout the same
Toe rocker33.3% of length31.4% of lengthabout the same
Toe tip over ground40 mm42.7 mmabout the same
Rocker rise angle28.6°31°about the same
FoamPWRRUN PBPWRRUN PBX (beaded PEBA)unclear: named differently; the sources do not say whether the material changed

Full side-by-side comparison →

Wrong value? Missing data? Tell me
Stored only to improve the site; see privacy.

Sources

  • Saucony Endorphin Speed 6 Review (2026) - Doctors of RunningreviewDoctors of Runningaccessed 2026-10-04open ↗
  • Saucony Endorphin Speed 6 Men's Shoes Surf/Black | Running WarehouseretailerRunning Warehouseaccessed 2026-10-04open ↗
  • saucony-endorphin-speed-6 lateral product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • saucony-endorphin-speed-6 medial product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • saucony-endorphin-speed-6 lateral product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • saucony-endorphin-speed-6 medial product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • saucony-endorphin-speed-6 sole product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • saucony-endorphin-speed-6 top product photoimageRunning Warehouseaccessed 2026-10-04open ↗
Technical detail: every recorded value, method and version (27)

All approved observations

Every recorded value, including superseded ones. The displayed value per metric is chosen by precedence (measured › stated › derived › AI estimated), then confidence, then recency. 58 further observations awaiting review.

MetricValueClassConfidenceMethodSourceRecorded
Heel-to-toe drop8 mmStatedMediumSpec listingDoctors of Running2026-10-04
Heel stack38 mmStatedMediumSpec listingDoctors of Running2026-10-04
Heel stack39 mmStatedMediumSpec listingRunning Warehouse2026-10-04
Forefoot stack31 mmStatedMediumSpec listingRunning Warehouse2026-10-04
Forefoot stack30 mmStatedMediumSpec listingDoctors of Running2026-10-04
Weight230 g (size 9)StatedMediumSpec listingDoctors of Running2026-10-04
Weight230 gStatedMediumSpec listingRunning Warehouse2026-10-04
Rocker apex67.9 %est.LowSide photoRunning Warehouse2026-10-04
Rocker apex68 %est.MediumSide photoRunning Warehouse2026-10-04
Rocker radius35 %est.LowSide photoRunning Warehouse2026-10-04
Rocker radius35 %est.MediumSide photoRunning Warehouse2026-10-04
Rocker rise angle30 degest.MediumSide photoRunning Warehouse2026-10-04
Rocker rise angle31 degest.LowSide photoRunning Warehouse2026-10-04
Toe tip over ground43 mmest.MediumSide photoRunning Warehouse2026-10-04
Toe tip over ground42 mmest.MediumSide photoRunning Warehouse2026-10-04
Rocker angle at toe53 degest.LowSide photoRunning Warehouse2026-10-04
Rocker angle at toe53 degest.MediumSide photoRunning Warehouse2026-10-04
Visible rocker lift onset79.5 %est.LowSide photoRunning Warehouse2026-10-04
Visible rocker lift onset79.7 %est.LowSide photoRunning Warehouse2026-10-04
Toe spring (relative)19.5 %est.LowSide photoRunning Warehouse2026-10-04
Toe spring (relative)19.5 %est.MediumSide photoRunning Warehouse2026-10-04
Heel bevel length16.7 %est.LowSide photoRunning Warehouse2026-10-04
Heel bevel length16.4 %est.LowSide photoRunning Warehouse2026-10-04
Heel bevel height26 mmest.LowSide photoRunning Warehouse2026-10-04
Heel bevel height26 mmest.MediumSide photoRunning Warehouse2026-10-04
Toe box shape76 %est.LowTop photoRunning Warehouse2026-10-04
Toe box shape76 %est.LowTop photoRunning Warehouse2026-10-04

Classes: Manufacturer stated · Externally measured · AI estimated · Derived · User reported. Hover a method for its identifier and algorithm version.

Source notes

  • Running Warehouse: sha256=c506319dfe4a3eeeae2712b75feafe35286598c5e90a4c7e4314d348db04c12d; 0.3
  • Running Warehouse: sha256=06d7f9bec71560ac68f0ce47f9f7417e2a13cb9d082ff9034fb54fad988a6660; 0.3
  • Running Warehouse: sha256=c6fc7735c2358240a0b6f9d2773d38567391563c0d1616ae2de938dc6134c045; 0.3
  • Running Warehouse: sha256=c112eb3275187d0a23003a73c7540d30b97e14de75bf2efa2133f55f067b40e6; 0.3
  • Running Warehouse: sha256=3479bcd3abebe2ee1f6e1c506485715abdab3e4b8a41c6e0276b5c31c60399e0; 0.1
  • Running Warehouse: sha256=003774b3fa6fefe307203ee221057a3dbc7ec35c1e36ece108a466dfc17c0179; 0.1

Shoes with similar geometry

Compare these →

Closest current models from other lines by stack, drop, rocker, toe height, stiffness, firmness, weight and width, whichever both shoes have.

Side profile illustration of the VJ FZN Aerofly
VJ
FZN Aerofly
Road/trail hybrid · Rock plate
Drop
8 mm
Heel
38 mm
Toe rocker
—

Very close on every shared measure

Side profile illustration of the Saucony Endorphin Elite 3
Saucony
Endorphin Elite 3
Racing · Carbon plate
Drop
8 mm
Heel
39.5 mm
Toe rocker
31%

vs this shoe: 23 g lighter

Side profile illustration of the Saucony Endorphin Azura
Saucony
Endorphin Azura
Daily trainer · No plate
Drop
8 mm
Heel
40 mm
Toe rocker
34%

Very close on every shared measure

Side profile illustration of the Saucony Endorphin Pro 5
Saucony
Endorphin Pro 5
Racing · Carbon plate
Drop
8 mm
Heel
39.5 mm
Toe rocker
35%

Very close on every shared measure