Old 09-23-11, 11:20 AM
  #14  
Diegomayra
Too Fat for This Sport
 
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Join Date: Apr 2009
Location: Northern California
Posts: 698

Bikes: 2011 Cannondale Supersix

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Some tubes have a removale presta valve upper portion. I untightened the dustcaps to a surprise "POP* Hssssssss!"

Easy fix, just screw it back in.

My pump handle always has a death grip on the stem, just pull in an upward direction, no angles.
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