ShoeGeometry

Brooks Ghost Max 4 vs On Cloudmonster 3

Two shoes compared on measured geometry. Each cell carries a provenance badge; open a shoe for sources.

heel boneBrooks Ghost Max 4: heel 39 mm, forefoot 33 mm (drop 6 mm); toe rocker 38 % of length, radius 53 % of length; heel bevel 10 % of length, 19 mm high at the back, ending behind the heel bone (only the back edge is rounded).Brooks Ghost Max 4: toe rocker 38 % of lengthOn Cloudmonster 3: heel 35 mm, forefoot 29 mm (drop 6 mm); toe rocker 37 % of length, radius 44 % of length; heel bevel 10 % of length, 14 mm high at the back, ending about under the heel bone.On Cloudmonster 3: toe rocker 37 % of length
  • Brooks Ghost Max 439/33 mm · toe rocker 38 % · heel bevel 10 %
  • On Cloudmonster 335/29 mm · toe rocker 37 % · heel bevel 10 %
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.

Which suits you

If you wantPickBecause
A smoother roll at toe-offAbout the same37.7 vs 37.5 % toe rocker
More cushioning under the heelBrooks Ghost Max 439 vs 35 mm heel stack
More under the forefootBrooks Ghost Max 433 vs 29 mm forefoot stack
A lower dropAbout the same6 vs 6 mm drop
A stiffer, snappier forefootAbout the same64 vs 66 /100 stiffness
A firmer, more stable feelOn Cloudmonster 374 vs 100 /100 firmness
A wider base under the forefootBrooks Ghost Max 4117.6 vs 113.7 mm forefoot base
Less weightAbout the same289 vs 295 g

From the values below, with differences inside measurement noise shown as about the same. This describes the shoes, not what is right for your feet; comfort in the first few runs decides.

MetricBrooks Ghost Max 4
Max cushion · Road
On Cloudmonster 3
Max cushion · Road
Heel-to-toe drop6 mmStated6 mmStated
Heel stack39 mmStated35 mmStated
Forefoot stack33 mmStated29 mmStated
Weight289 gStated295 gStated
Toe rocker38 %est.37 %est.
Rocker radius53 %est.44 %est.
Rocker rise angle26 degest.29 degest.
Rocker angle at toe58 degest.56 degest.
Toe tip over ground43 mm*est.48 mm*est.
Visible rocker lift onset72.9 %est.73.1 %est.
Toe spring (relative)19.6 %est.20.7 %est.
Heel bevel length9.6 %est.10.2 %*est.
Heel bevel height19 mm*est.14 mm*est.
Midsole width (forefoot)117.6 mmMeasured113.7 mmMeasured
Midsole width (heel)96.2 mmMeasured90.2 mmMeasured
Interior forefoot width93.4 mmMeasured94.3 mmMeasured
Toebox width71.3 mmMeasured71 mmMeasured
Longitudinal stiffness64Derived66Derived
Midsole firmness74Derived100Derived
PlateNo plateNylon plate
Primary foamDNA Loft v3Helion
List price$165$190

Key differences

  • Heel-to-toe drop is about the same: 6 mm for Brooks Ghost Max 4, 6 mm for On Cloudmonster 3.
  • Brooks Ghost Max 4's heel stack is 39 mm, 4 mm thicker than On Cloudmonster 3's 35 mm.
  • Brooks Ghost Max 4's forefoot stack is 33 mm, 4 mm thicker than On Cloudmonster 3's 29 mm.
  • Weight is about the same: 289 g for Brooks Ghost Max 4, 295 g for On Cloudmonster 3.
  • Toe rocker is about the same: 38 % of length for Brooks Ghost Max 4, 37 % of length for On Cloudmonster 3.

Read more about both shoes

We measure the shape. For how they feel over many miles, and for lab tests of cushioning, grip and fit:

Brooks Ghost Max 4

On Cloudmonster 3

Independent sites; we are not affiliated with them.

Brooks Ghost Max 4 details · On Cloudmonster 3 details · Add more shoes