
| Spec | Adizero Boston 13 | Magic Speed 5 |
|---|---|---|
| Best price now | £69.99 | £85.00 |
| 90-day low | £63.00 | £85.00 |
| 30-day average | £109.51 | £141.32 |
| RRP | £140.00 | £170.00 |
| Category | Tempo | Tempo |
| Surface | Road | Road |
| Weight | 254g | 193g |
| Drop | 6mm | 7mm |
| Heel stack | 34.3mm | 37mm |
| Forefoot stack | 28.3mm | 30mm |
| Carbon plated | No | Yes |
| Stability | No | No |
| Review rating | — | — |
The Adizero Boston 13 is adidas at its most versatile: a firm, fast daily training shoe built to handle tempo work, threshold sessions and steady miles in one pair. It is not a race shoe and it is not a soft cruiser. It sits in the middle, the workhorse you reach for when the session asks for pace but you still want a shoe that lasts. At 254g it is on the heavier side for a tempo running shoe, and you feel that weight on truly easy days, but the trade is a platform with real durability and a planted, controlled ride. The internal rod system keeps the forefoot snappy and stiff, so when you push the pace the shoe pushes back. Compared with the lighter, livelier Adizero EVO SL, the Boston is the more rugged, do-everything option. If you want one shoe to carry your whole week, this is a strong pick.
The Magic Speed 5 is Asics doing the sensible thing: a carbon-plated running shoe that hands you race-day pop without asking for full super-shoe money. It sits a rung below the Metaspeed Sky racers, so think of it as a carbon tempo shoe and part-time marathon shoe rather than an out-and-out record chaser. At 193g with a 37mm heel and a 7mm drop, it is light and low-slung enough to feel fast, and the FF Turbo foam gives it genuine bounce when you lean into a session. What makes it worth a look is versatility. It will pace a threshold workout on Tuesday, then carry you through a half or a first marathon on Sunday without feeling like overkill. It is not the softest or the most aggressive shoe in its class, but as a one-shoe answer for a runner who wants some carbon assistance across a range of paces, we rate it highly.
A side-by-side comparison makes the trade-offs between two running shoes easy to see, but the right pick still depends on how you run. Weight and stack height shape the feel underfoot: a lighter shoe with a lower stack feels nimble and fast, while a heavier, taller stack gives a softer, more protective ride for long miles. Heel-to-toe drop changes where you feel the load, with lower drops asking more of the calves and Achilles.
The price figures update from the UK retailers we track daily. The best price now is the cheapest tracked price we can currently link to, the 90-day low shows how cheap the shoe has been recently, and the 30-day average tells you whether a price is a genuine drop or just the going rate. Coverage is partial rather than complete, so always confirm the final price and your size on the retailer site, and set a price alert on the model you want so we can email you the moment it drops.
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