I’m 51 - an ex runner - My TR measured FTP from my most recent ramp test is 295W at 60.7kg. However I time trial in the UK and the best power I put out in a 25 mile tt in 2019 (kind of hour power - well a bit less as my time was 55:00) was 259W on my time trial bike so either the ramp test over estimates my power a bit or I am a bit better at getting it through the pedals on the road bike!
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