~600 km
Expected lifespan, estimated from its category and specs.

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Ideal for Runners who want a heavily cushioned, stable everyday and recovery shoe for easy miles and walking, including those with wider feet who value a guided, fatigue-reducing ride over speed.
Daily Trainer shoes in NORMA's database last between 320 and 800 km across 694 models. At 600 km, the Brooks Ghost Max 4 sits in the upper half of that range.
The Brooks Ghost Max 4 is a high-stack, max-cushion road shoe built for daily training, walking, recovery, and long easy miles. It pairs a plush, protective platform with a rockered geometry for smooth, guided transitions that stay comfortable deep into a session. The ride leans stable and controlled rather than soft-and-bouncy, so it suits runners who want cushioning with a sense of guidance underfoot. The upper is accommodating through the forefoot and comes in multiple widths, making it a friendly fit for wider feet. It is not a fast shoe and is not meant for trails, but for steady aerobic mileage and reducing lower-leg fatigue it is a reliable, no-fuss workhorse.
Full specs, fit notes, and reviews on the Brooks Ghost Max 4 wiki page.
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The Brooks Ghost Max 4 lasts about 600 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 360 km (60% of its lifespan). By 480 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 600 km.
Daily Trainer shoes in NORMA's database range from 320 to 800 km across 694 models. At 600 km, the Brooks Ghost Max 4 sits in the upper half of that range.
Often, yes. A pair with under 60% wear (roughly 360 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.