So I'm really starting to question the precision of my D-Zero. The calibration number jumps around a bit, usually between 40-50. Is that too big of a range?
If it was just that I wouldn't think much of it, but after racing Sunday I'm really not sure.
In the race on Sunday I avg 25.2 mph on 229ap/232np. (the swim was rough and my HR was sky high at the beginning of the ride and I thought that's why I was having trouble hitting target power)
In a simulation ride a week before (38 miles on the race course in the same weather conditions - 20mph side winds) I averaged 24.8 on 250ap/253np.
Yes, I made a few small changes listed below from the practice ride to the race ride, but nothing that seems drastic enough to avg almost .5mph faster on 20w less.
Swapped 23 4000s to 23 TT tires
Swapped from regular hed skewers to view-speed skewers
Swapped from Jet+ 9 in front to Jet+ 6 for the crosswinds (figured this would have made me slower?)
Moved my garmin from on top of my BTA bottle (xlab kompact) to in between my extensions up by my hands to get it out of the wind
Put on a brand new freshly waxed chain (broke it in for 30min day before)
Swapped to single behind the seat bottle holder from double
Did not wear my 920xt until the run
Can all of those little things really add up to that much difference? The effort felt the same, that's for sure. And my legs felt much worse coming off the bike during the race than any of the tempo bricks I did before, even a 50 miler at 250w.
If it was just that I wouldn't think much of it, but after racing Sunday I'm really not sure.
In the race on Sunday I avg 25.2 mph on 229ap/232np. (the swim was rough and my HR was sky high at the beginning of the ride and I thought that's why I was having trouble hitting target power)
In a simulation ride a week before (38 miles on the race course in the same weather conditions - 20mph side winds) I averaged 24.8 on 250ap/253np.
Yes, I made a few small changes listed below from the practice ride to the race ride, but nothing that seems drastic enough to avg almost .5mph faster on 20w less.
Swapped 23 4000s to 23 TT tires
Swapped from regular hed skewers to view-speed skewers
Swapped from Jet+ 9 in front to Jet+ 6 for the crosswinds (figured this would have made me slower?)
Moved my garmin from on top of my BTA bottle (xlab kompact) to in between my extensions up by my hands to get it out of the wind
Put on a brand new freshly waxed chain (broke it in for 30min day before)
Swapped to single behind the seat bottle holder from double
Did not wear my 920xt until the run
Can all of those little things really add up to that much difference? The effort felt the same, that's for sure. And my legs felt much worse coming off the bike during the race than any of the tempo bricks I did before, even a 50 miler at 250w.