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adidas adizero F50 first impressions: a 15 gram weight reduction makes a ton of difference - SBNation.com
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adidas adizero F50 first impressions: a 15 gram weight reduction makes a ton of difference - SBNation.com
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adidas adizero F50 first impressions: a 15 gram weight reduction makes a ton of difference - SBNation.com
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