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The World's Fastest Track Spikes?? New Balance FuelCell MD-X and SD-X | Best Super Spike Breakdown - YouTube
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Amazon.com | New Balance Men's Sprint 100 V3 Spike Running Shoe, Black/White, 7.5 M US | Track & Field & Cross Country
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Amazon.com | New Balance Men's Sprint Sigma Harmony V1 Spike Running Shoe, Dark Mango/uv Blue, 4 D US | Track & Field & Cross Country
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