Thread: FTP Drop
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Old 02-23-21 | 05:06 PM
  #13  
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Originally Posted by Tommytom
Hi All, Just purchased my first power meter (Garmin V3S). Before that was using power on Zwift. I know it is only virtual but was able to maintain 250 watts or 2.8 watts/kg. Now with single sided power meter I can only manage to maintain about 203 watts or 2.3 watts/kg. Just wondering is this normal? Is power that far out? could my legs be that uneven? Sorry for the noobie questions
Prior to getting a smart trainer in December, I was riding a dumb trainer and using Zpower on Zwift to estimate power. Using their ramp test, I had an FTP of 320. With the Smart trainer and actual power output, I managed 290. So, don't be too surprised if you're finding a power meter gives you 10-15% less than Zpower.
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