P1 or Wahoo Kickr power and BBS and calibration

Triathlon Forum
1

As I begin my annual “what time can I ride on my upcoming race” obsession I was wondering if anyone had any input for two questions

  1. My P1 is approximately 6-8 watts lower than my Kickr. Of course I take this into account when I’m riding. Which wattage do I input into BBS to get a more accurate estimation of race time? I calibrate my Kickr all the time and the zero offset is 835.
  2. I don’t calibrate my P1 pedals much as it seems as though this number can change relative to my kickr numbers (anywhere from 0-2 watts off up to 7 watts off). Is this okay since my zero offset remains constant and I’ve chosen to use this as my standard? As long as the P1 is about 7 watts off I can figure out what to do. I understand I can have my P1 control the kickr but didn’t do so for this year and didn’t want to mess anything up.

thx in advance

2

you will be racing using your p1’s so that would be the wattage you should use for BBS
.

3

Use the pedals.

Make sure your bike+rider weight is correct (include helmet, shoes, clothes, food etc…)

After a few races you should have a reasonable model & be able to roughly predict times (within a minute or so for an Oly)

Weather, clumps of riders / loop course draft etc… will have an impact, be careful when using the aero analyser to determine cda from rides where you’ve picked up some draft.