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His approach was to use a balloon-width tire of about 2.25 " ( 57mm ) on a 20 " ( 500mm ) rim , giving a wheel of approximately 24 " ( 600mm ) in diameter .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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