08-01-2008, 12:55 PM
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#127 (permalink)
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Batman Junior
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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It's hard to tell from that photo, but I'm going to side with Bicycle Bob. The effective angle on the rear 'glass' portion of that cap looks like it may be pretty close to the angles that Hucho shows increase drag by spawning a large trailing vortex on each side.
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