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Old 09-23-15 | 09:44 PM
  #993  
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Heathpack
Has a magic bike
 
Joined: Aug 2013
Posts: 12,590
Likes: 425
From: Los Angeles

Bikes: 2018 Scott Spark, 2015 Fuji Norcom Straight, 2014 BMC GF01, 2013 Trek Madone

Originally Posted by hack
Did a TT last night ... not sure what's up, but since I've gone to a disc (Zipp 900) I've gotten slower. Weather has been consistent, power has gone UP and I'm coming in like 20s slower. Perplexed really. It spins fine on the hub, not rubbing, and tire pressure seems ok. Previous wheel was a Reynolds 66. May go back to that on my next run and see what's up.
Same tires?
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