https://www.britishcycling.org.uk/membership/article/20120925-Power-Calculator-0
Drop your ftp in at the top.
Thanks.
That seems to shift everything up a 5% or so as compared to Strava's zones, which makes sense given my FTHR is quite high at nearly 95% of max HR. I'll give these a go.
@Jon. started
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https://www.britishcycling.org.uk/membership/article/20120925-Power-Calculator-0
Drop your ftp in at the top.