ShoeGeometry

ASICS GT-1000 15 vs Brooks Adrenaline GTS 25

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

heel boneASICS GT-1000 15: heel 36 mm, forefoot 28 mm (drop 8 mm); toe rocker 31 % of length, radius 41 % of length; heel bevel 10 % of length, 17 mm high at the back, ending about under the heel bone.ASICS GT-1000 15: toe rocker 31 % of lengthBrooks Adrenaline GTS 25: heel 37 mm, forefoot 27 mm (drop 10 mm); toe rocker 32 % of length, radius 36 % of length; heel bevel 9 % of length, 14 mm high at the back, ending behind the heel bone (only the back edge is rounded).Brooks Adrenaline GTS 25: toe rocker 32 % of length
  • ASICS GT-1000 1536/28 mm · toe rocker 31 % · heel bevel 10 %
  • Brooks Adrenaline GTS 2537/27 mm · toe rocker 32 % · heel bevel 9 %
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 same31.4 vs 32 % toe rocker
More cushioning under the heelAbout the same36 vs 37 mm heel stack
More under the forefootAbout the same28 vs 27 mm forefoot stack
A lower dropASICS GT-1000 158 vs 10 mm drop
A stiffer, snappier forefootAbout the same24 vs 33 /100 stiffness
A firmer, more stable feelAbout the same50 vs 54 /100 firmness
A wider base under the forefootAbout the same119.4 vs 117.7 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 GT-1000 15
Stability · Road
Brooks Adrenaline GTS 25
Stability · Road
Heel-to-toe drop8 mmDerived10 mmStated
Heel stack36 mmStated37 mmStated
Forefoot stack28 mmStated27 mmStated
Weight269 gStated301 gStated
Toe rocker31 %est.32 %est.
Rocker radius41 %est.36 %est.
Rocker rise angle30 degest.31 degest.
Rocker angle at toe55 degest.60 degest.
Toe tip over ground38 mmest.39 mm*est.
Visible rocker lift onset78.3 %est.76.5 %est.
Toe spring (relative)17.8 %est.19.3 %est.
Heel bevel length10 %est.9 %*est.
Heel bevel height17 mmest.14 mm*est.
Midsole width (forefoot)119.4 mmMeasured117.7 mmMeasured
Midsole width (heel)99.8 mmMeasured100.7 mmMeasured
Toe box shape—77 %*est.
Interior forefoot width96.9 mmMeasured96 mmMeasured
Toebox width73.3 mmMeasured72.8 mmMeasured
Longitudinal stiffness24Derived33Derived
Midsole firmness50Derived54Derived
PlateNo plateNo plate
Primary foamFF Blast + PureGEL heelDNA Loft v3
List price$115$145

Key differences

  • ASICS GT-1000 15's heel-to-toe drop is 8 mm, 2 mm lower than Brooks Adrenaline GTS 25's 10 mm.
  • ASICS GT-1000 15's heel stack is 36 mm, 1 mm thinner than Brooks Adrenaline GTS 25's 37 mm.
  • ASICS GT-1000 15's forefoot stack is 28 mm, 1 mm thicker than Brooks Adrenaline GTS 25's 27 mm.
  • ASICS GT-1000 15's weight is 269 g, 32 g lighter than Brooks Adrenaline GTS 25's 301 g.
  • Toe rocker is about the same: 31 % of length for ASICS GT-1000 15, 32 % of length for Brooks Adrenaline GTS 25.

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 GT-1000 15

Brooks Adrenaline GTS 25

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ASICS GT-1000 15 details · Brooks Adrenaline GTS 25 details · Add more shoes