Thread: What are these things?
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Old 02-12-07 | 10:12 PM
  #4  
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jjvw
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Bikes: 1973 Italvega Nouvo Record; 1965 Hercules; 1982-83 Schwinn Mystery MTB

That's what keeps your wheel from falling off after you incorrectly install it. Ingenious, aren't they?
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