In production · road · Race day / Tempo · $300
Asics Metaspeed Ray: 40 mm heel stack, 5 mm drop, 129 g — specs from independent lab testing.
Built for race day, tempo, at a target pace of 5:30–7:15 /mi on road.
The midsole is FF Turbo, tuned soft (4/5 on our cushioning scale). The foam is highly resilient — it gives energy back rather than swallowing it, which is what makes the shoe feel eager when you push. At 40 mm of heel stack this sits in max-cushion territory; legs stay fresher on long efforts, but the platform is tall. Combined, the ride reads as explosive at 5/5 responsiveness.
A full-length carbon plate stiffens the forefoot and works with the foam as a lever: it smooths the transition off the toes and cuts the effort of holding fast paces. It also asks for speed — at easy paces a carbon plate feels stiff and does little for you, and it is the main reason super-shoes wear out sooner than trainers.
A low 5 mm drop encourages a midfoot landing and keeps the ankle working through a fuller range. The rocker is aggressive: the sole is curved and stiff enough to tip you into the next stride on its own, which saves the calf on long runs but feels strange when you slow right down. Forefoot flex is middle of the road. It is a neutral platform with no built-in correction.
The toe-box is narrow and performance-oriented; wide-footed runners should try before buying. It runs a touch large; consider a half size down. Expect roughly 250 miles from the outsole, about $1.20 per mile at $300.
For the foams and plates Asics uses across its line, read the Asics brand guide.
Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.
Weight
129 g / 4.6 oz
146 g lighter than the catalog median of 275 g
Heel stack
40 mm
4 mm taller than the catalog median of 36 mm
Drop
5 mm
1 mm lower than the catalog median of 6 mm
Price
$300
140 pricier than the catalog median of 160
Responsiveness
5 / 5
Catalog median 3 / 5
Cushioning
4 / 5
Catalog median 4 / 5
Energy return
5 / 5
Catalog median 3 / 5
Durability
~250 mi
Catalog median ~400 mi
Within the Asics line it is lighter than the brand's median (268 g / 9.5 oz) and sits taller than its median stack (38 mm).
Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.
Adidas Adizero Adios Pro Evo 1(2023)
138 g / 4.9 oz · 39 mm · 6 mm drop · Carbon · $500
The 138-gram, $500 record-chasing racer — Lightstrike Pro Evo at the legal limit.
Adidas Adizero Adios Pro Evo 2(2025)
138 g / 4.9 oz · 39 mm · 3 mm drop · Carbon · $500
138 g of Lightstrike Pro Evo and Energyrods — a marathon-only weapon.
Asics Metaspeed Sky Tokyo(2025)
170 g / 6.0 oz · 40 mm · 5 mm drop · Carbon · $275
Lighter, bouncier stride-runner's marathon racer.
Asics Metaspeed Edge Tokyo(2025)
170 g / 6.0 oz · 40 mm · 5 mm drop · Carbon · $275
Cadence-focused Metaspeed with a snappier toe-off.