ShoeGeometry

ASICS Magic Speed 5 vs Nike Zoom Fly 6

Two popular shoes in the same category, compared on measured geometry. Each cell carries a provenance badge; open a shoe for sources.

heel boneASICS Magic Speed 5: heel 36 mm, forefoot 29 mm (drop 7 mm); toe rocker 36 % of length, radius 37 % of length; heel bevel 9 % of length, 22 mm high at the back, ending behind the heel bone (only the back edge is rounded).ASICS Magic Speed 5: toe rocker 36 % of lengthNike Zoom Fly 6: heel 40 mm, forefoot 32 mm (drop 8 mm); toe rocker 41 % of length, radius 55 % of length; heel bevel 13 % of length, 16 mm high at the back, ending about under the heel bone.Nike Zoom Fly 6: toe rocker 41 % of length
  • ASICS Magic Speed 536/29 mm · toe rocker 36 % · heel bevel 9 %
  • Nike Zoom Fly 640/32 mm · toe rocker 41 % · heel bevel 13 %
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-offNike Zoom Fly 635.7 vs 40.6 % toe rocker
More cushioning under the heelNike Zoom Fly 636 vs 40 mm heel stack
More under the forefootNike Zoom Fly 629 vs 32 mm forefoot stack
A lower dropASICS Magic Speed 57 vs 8 mm drop
A stiffer, snappier forefootNike Zoom Fly 627 vs 71 /100 stiffness
A firmer, more stable feelNike Zoom Fly 625 vs 62 /100 firmness
A wider base under the forefootAbout the same110.1 vs 111.9 mm forefoot base

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.

MetricASICS Magic Speed 5
Tempo · Road
Nike Zoom Fly 6
Tempo · Road
Heel-to-toe drop7 mmStated8 mmStated
Heel stack36 mmStated40 mmStated
Forefoot stack29 mmStated32 mmStated
Weight196 gStated265 gStated
Toe rocker36 %est.41 %est.
Rocker radius37 %est.55 %est.
Rocker rise angle30 degest.26 degest.
Rocker angle at toe61 degest.59 degest.
Toe tip over ground44 mmest.44 mm*est.
Visible rocker lift onset77.9 %est.71.3 %est.
Toe spring (relative)20.5 %est.19.4 %est.
Heel bevel length9.1 %est.12.8 %*est.
Heel bevel height22 mm*est.16 mm*est.
Midsole width (forefoot)110.1 mmMeasured111.9 mmMeasured
Midsole width (heel)78.1 mmMeasured87.9 mmMeasured
Toe box shape—75 %*est.
Interior forefoot width95.1 mmMeasured90.9 mmMeasured
Toebox width71.9 mmMeasured72.6 mmMeasured
Longitudinal stiffness27Derived71Derived
Midsole firmness25Derived62Derived
PlateCarbon plateCarbon plate
Primary foamFF Leap top / FF Blast Plus bottomZoomX + SR-02
List price$180$180

Key differences

  • ASICS Magic Speed 5's heel-to-toe drop is 7 mm, 1 mm lower than Nike Zoom Fly 6's 8 mm.
  • ASICS Magic Speed 5's heel stack is 36 mm, 4 mm thinner than Nike Zoom Fly 6's 40 mm.
  • ASICS Magic Speed 5's forefoot stack is 29 mm, 3 mm thinner than Nike Zoom Fly 6's 32 mm.
  • ASICS Magic Speed 5's weight is 196 g, 69 g lighter than Nike Zoom Fly 6's 265 g.
  • ASICS Magic Speed 5's toe rocker is 36 % of length, 5 % of length shorter than Nike Zoom Fly 6's 41 % of length.

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:

ASICS Magic Speed 5

Nike Zoom Fly 6

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ASICS Magic Speed 5 details · Nike Zoom Fly 6 details · Add more shoes