ASICS Gel-Kayano 32 vs Brooks Adrenaline GTS 24: A Podiatrist Reads Both Spec Sheets

The numbers, side by side

What a foot and ankle surgeon takes from this

1. The drop difference comes from the forefoot, not the heel

This is the finding worth the page. Both shoes sit at almost exactly the same height under the heel — 39.9 mm against 39.0. Yet the measured drop differs by 4.2 mm. That gap is created entirely at the front: the Kayano has 30.6 mm under the forefoot against the Adrenaline’s 25.5. So the Adrenaline is not a “higher” shoe with more heel — it is a shoe with less forefoot, which tips you forward. If you have forefoot pain — metatarsalgia, a neuroma, sesamoid trouble — that 5.1 mm of extra foam under the ball is the single most relevant number on this page, and it favours the Kayano.

2. The weight difference on the box is not real

ASICS publishes 304 g and Brooks 283 g, which reads as a meaningful 21 g penalty for the Kayano. Weighed, they came in at 295 and 291 — a 4 g difference, which is roughly a sheet of paper and nothing a runner will feel. ASICS understated its shoe’s lightness and Brooks overstated its own. Anyone choosing between these two on published weight is deciding on a difference that does not exist.

3. Their toe boxes are the same, so fit is decided elsewhere

73.9 mm against 73.7 mm at the big toe. For practical purposes these shoes are equally roomy up front, and forefoot width is not a tiebreaker. What does differ is the width range: Brooks offers a Narrow, ASICS (in men’s) does not, so a slim foot that swims in a medium has one option here and not two. See best shoes for wide feet for how the width letters actually work.

Which one is actually for you

Choose the Kayano 32 if

You have forefoot pain of any kind, or you simply want more shoe between you and the ground at the front. It is also the softer of the two, so it suits a runner who wants control without a firm ride, and it has the wider base. You are paying $25 more for that.

Choose the Adrenaline GTS 24 if

You want the firmer, more controlling platform — useful for a heavier runner or a more determined overpronator; you have insertional Achilles or heel pain that a steeper effective drop offloads; you need a Narrow width; or you want to save $25. See best shoes for overpronation and our Ghost 17 vs Adrenaline GTS 24 comparison if you are also weighing the neutral option.

What we cannot tell you until we test them

Everything above is each brand’s published specification and one independent lab’s measurements of a single retail pair. What that cannot tell you is how either heel counter holds up under load, how much the midsole packs out over a few hundred miles, or how much usable volume is left once an orthotic goes in — which matters more than usual here, because both shoes are commonly bought by people who already wear a device. Those are the figures we measure ourselves, and until a pair of each has been through the protocol, neither carries a score or the seal. Here is what testing means on this site.

Where to buy

Disclosure: the links below are paid links. If you buy through one, Amazon pays us a commission at no extra cost to you. Commissions never influence a score, a ranking or the seal — and neither shoe here has a score, because neither has been tested. See our independence policy.

Read the full analysis of each