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Old 03-23-11 | 05:57 PM
  #4  
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tinrobot
Spit out the back
 
Joined: Aug 2005
Posts: 1,116
Likes: 4
From: Silverlake, CA
Intervals. Find a hill, sprint up it as fast as you can for a short period of time. Sit back for another short period of time. Repeat.
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