~590 km
Expected lifespan, estimated from its category and specs.

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Ideal for Beginners and casual runners who want a soft, comfortable shoe for easy runs, gym sessions and walking without spending much. A good first running shoe or an everyday knock-around trainer.
Daily Trainer shoes in NORMA's database last between 320 and 800 km across 694 models. At 590 km, the Asics Roadblast sits in the upper half of that range.
The Asics Roadblast is the entry-level member of Asics' BLAST BEYOND series, sitting below the Novablast and Dynablast. It pairs FLYTEFOAM Blast and AMPLIFOAM cushioning with reinforced heel padding and a simple, clean design. Asics pitches it squarely at easy running, fitness sessions and everyday wear rather than serious training or racing. Expect a soft, mildly bouncy ride that keeps things comfortable at relaxed paces, with a lower price making it an easy first running shoe or a casual daily option. It is not built for speed, but for approachable comfort at an accessible price.
Full specs, fit notes, and reviews on the Asics Roadblast wiki page.
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The Asics Roadblast lasts about 590 km, estimated from its category and specs. Your own mileage shifts with body weight, running surface, and how you use the shoe.
Start checking for wear around 354 km (60% of its lifespan). By 472 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 590 km.
Daily Trainer shoes in NORMA's database range from 320 to 800 km across 694 models. At 590 km, the Asics Roadblast sits in the upper half of that range.
Often, yes. A pair with under 60% wear (roughly 354 km) still has real training life left. NORMA lists second-rotation running shoes with transparent, verified mileage so you know exactly how much life you're buying.