ASICS splits its flagship by running style — stride length against cadence. Same foam, same plate, same price: the drop is the decision.
The ASICS Metaspeed Edge Tokyo is 2g lighter (181g against 183g), both carry the same £250 RRP, and both hold their foam for roughly 250km of racing. Both are inside the World Athletics 40mm road limit.
Weight · men's US 9
Price · UK RRP
Competitive life · km before the foam fades
■ marks the better figure, where better is not a matter of taste
Metaspeed Sky Tokyo39.5mm — on the limit
Metaspeed Edge Tokyo39.5mm — on the limit
| Specification | Metaspeed Sky Tokyo | Metaspeed Edge Tokyo |
|---|---|---|
| RRP | £250 | £250 |
| Weight | 183g | 181g (advantage) |
| Stack | 39.5 / 34.5mm | 39.5 / 31.5mm |
| Drop | 5mm | 8mm |
| Road legal | yes | yes |
| Plate | carbon fibre | carbon fibre |
| Foam | FF Leap over FF Turbo+ | FF Leap over FF Turbo+ |
| Competitive life | ~250km | ~250km |
| Price per km of life | £1.00 | £1.00 |
| Fit | standard | standard |
| Underfoot | balanced | balanced |
| Built for | 10K · Half · Marathon | 10K · Half · Marathon |
| Economy gain | 3.5–4.7% | 3.5–4.7% |
= 5:20/km
Modelled economy gain adjusted for pace and your current shoes; ranges reflect the spread published between individual runners. Full method.
| Race | For the time | For the money |
|---|---|---|
| 10Kat a reference 45:00 | Too close to callboth −43s to −1m 1s | Level on cost |
| Half marathonat a reference 1:45:00 | Too close to callboth −1m 33s to −2m 13s | Level on cost |
| Marathonat a reference 3:45:00 | Too close to callboth −3m 6s to −4m 26s | Level on cost |
Reference times, trainer baseline, whole-life economics. Your own time changes the answer — use the reading above.
For stride-length runners — the Sky is built to let your stride open up rather than turn over faster. Arguably the best all-round marathon shoe currently made.
■ Caution ASICS splits the line by running style. If you race by increasing cadence rather than stride length, the Edge is the correct shoe and this one will feel wrong.
The cadence runner’s version of the Sky. Higher drop, more aggressive roll, same foam and plate package.
■ Caution Same caveat in reverse — pick the wrong one of the pair and you lose most of the benefit you paid for.
Manufacturer-stated specs unless marked estimated on the shoe sheet · last reviewed 2026-08-13 · prices are UK RRP.