ShoeGeometry

ASICS Metaspeed Sky Tokyo vs Nike Streakfly 2

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

heel boneASICS Metaspeed Sky Tokyo: heel 40 mm, forefoot 35 mm (drop 5 mm); toe rocker not measured, typical shape drawn.Nike Streakfly 2: heel 27 mm, forefoot 23 mm (drop 4 mm); toe rocker 35 % of length, radius 38 % of length; heel bevel 8 % of length, 8 mm high at the back, ending behind the heel bone (only the back edge is rounded).Nike Streakfly 2: toe rocker 35 % of length
  • ASICS Metaspeed Sky Tokyo40/35 mm · toe rocker not measured
  • Nike Streakfly 227/23 mm · toe rocker 35 % · heel bevel 8 %
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
More cushioning under the heelASICS Metaspeed Sky Tokyo40 vs 27 mm heel stack
More under the forefootASICS Metaspeed Sky Tokyo35 vs 23 mm forefoot stack
A lower dropNike Streakfly 25 vs 4 mm drop
A stiffer, snappier forefootASICS Metaspeed Sky Tokyo69 vs 0 /100 stiffness
A firmer, more stable feelAbout the same44 vs 44 /100 firmness
A wider base under the forefootASICS Metaspeed Sky Tokyo114.9 vs 102.2 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 Metaspeed Sky Tokyo
Racing · Road
Nike Streakfly 2
Racing · Road
Heel-to-toe drop5 mmDerived4 mmStated
Heel stack40 mmStated27 mmStated
Forefoot stack35 mmStated23 mmStated
Weight159 gStated145 gStated
Toe rocker—35 %est.
Rocker radius—38 %est.
Rocker rise angle—30 degest.
Rocker angle at toe—67 degest.
Toe tip over ground—43 mm*est.
Visible rocker lift onset—77.2 %est.
Toe spring (relative)—19.8 %est.
Heel bevel length—8.2 %*est.
Heel bevel height—8 mm*est.
Midsole width (forefoot)114.9 mmMeasured102.2 mmMeasured
Midsole width (heel)75 mmMeasured70.8 mmMeasured
Toe box shape—78 %est.
Interior forefoot width90.5 mmMeasured89.7 mmMeasured
Toebox width70.1 mmMeasured66.7 mmMeasured
Longitudinal stiffness69Derived0Derived
Midsole firmness44Derived44Derived
PlateCarbon plateCarbon plate
Primary foamFF Leap + FF Turbo PlusZoomX
List price$270$150

Key differences

  • ASICS Metaspeed Sky Tokyo's heel-to-toe drop is 5 mm, 1 mm higher than Nike Streakfly 2's 4 mm.
  • ASICS Metaspeed Sky Tokyo's heel stack is 40 mm, 13 mm thicker than Nike Streakfly 2's 27 mm.
  • ASICS Metaspeed Sky Tokyo's forefoot stack is 35 mm, 12 mm thicker than Nike Streakfly 2's 23 mm.
  • ASICS Metaspeed Sky Tokyo's weight is 159 g, 14 g heavier than Nike Streakfly 2's 145 g.

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 Metaspeed Sky Tokyo

Nike Streakfly 2

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ASICS Metaspeed Sky Tokyo details · Nike Streakfly 2 details · Add more shoes