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~310 km
Expected lifespan, estimated from its category and specs.
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Check your Cloudboom Strike 2 →Ideal for Competitive road racers targeting half and full marathon PBs who want a light, stiff, carbon-plated shoe for race day and fast workouts, and already have separate trainers for daily miles.
Race-Day shoes in NORMA's database last between 100 and 550 km across 130 models. At 310 km, the On Cloudboom Strike 2 sits in the lower half of that range.
The On Cloudboom Strike 2 is On's next-generation carbon race shoe built for competitions up to the marathon. At 191g with a 5mm drop, it pairs the new CloudTec Sphere geometry with a curved carbon Speedboard sandwiched between dual-density Helion HF foam, now 15% lighter than before. This is a purpose-built racer aimed at runners chasing PBs over half and full marathon distances, with an emphasis on propulsion, energy return, and low weight. It runs fast and light, with a stiff plate driving forward momentum. Not a do-everything trainer, it is at its best on race day and fast tempo efforts.
Full specs, fit notes, and reviews on the On Cloudboom Strike 2 wiki page.
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The On Cloudboom Strike 2 lasts about 310 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 186 km (60% of its lifespan). By 248 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 310 km.
Race-Day shoes in NORMA's database range from 100 to 550 km across 130 models. At 310 km, the On Cloudboom Strike 2 sits in the lower half of that range.
Often, yes. A pair with under 60% wear (roughly 186 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.
