Originally Posted by
ancker
I can't say that it's normal, but I've seen something similar after a big sprint or climb, albeit never after 45 seconds of coasting, maybe 10-15 seconds.
I think that as long as you're moving, NP is being calculated, and TSS comes from NP, no? So even if you're not pedaling, your NP is still being calculated over the ever extending period of time, and so even though NP is dropping the TSS treats it as 245W over 1:30 instead of 270W over 1:25 + 5min coasting.