Old 04-29-10, 09:13 AM
  #19  
Robert Foster
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Join Date: May 2008
Location: Southern california
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Bikes: Lapierre CF Sensium 400. Jamis Ventura Sport. Trek 800. Giant Cypress.

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I think one of those compressed air boat horns would work well. It would fit in a water bottle holder and put out about 100 DBs or so. Then you could blast at more than 5 MPH.
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