ON Cloudspike Amplius 2
Model Size Information
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Engineered for elite mid-distance performance, the On Cloudspike Amplius 2 delivers a featherlight, aggressive ride tuned for speed over 1500–5000m events. With a carbon-infused Speedboard®, ultra-responsive Helion™ HF superfoam, and precision spike plate, every element of this racing spike is designed to launch you forward. It’s speed science—optimized for the track.
Key Features
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Carbon-infused Speedboard® delivers rigid propulsion with explosive energy return
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Helion™ HF superfoam midsole is ultralight and responsive for peak turnover
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Aggressive forefoot rocker promotes rapid transitions and midfoot drive
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Low-profile spike plate with 5 removable spikes for maximum traction
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Lightweight engineered mesh upper offers locked-in breathability
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Designed in collaboration with elite athletes for real-world speed optimization
Specifications
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Weight: Approx. 4.4 oz (Men’s size 9)
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Heel-to-Toe Drop: 4mm
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Support Type: Neutral
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Cushioning: Race-tuned, firm and responsive
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Spike Plate: 5-pin configuration (removable)
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Best For: 1500m–5000m track races
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Ride Feel: Aggressive, fast, ultra-efficient
Materials
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Upper: Ultralight engineered mesh with internal reinforcement
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Midsole: Helion™ HF superfoam with carbon Speedboard®
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Outsole: Track spike plate with durable rubber traction zones
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Sustainability: Recycled content used in upper construction
