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  • Pacing is the key thing with TTs, and knowing what you can hold consistently is crucial. That knowledge will come with time though, the more TT events (at the same distance) you do, the better attuned to your ability/numbers you'll become.

    Power meters are obviously king, then Heart Rate monitors. They'll give you objective numbers (assuming you've done a test to calculate your FTP or worked out your HR zones from you Max HR). After that, you can use Rate of Perceived Exertion to score how hard you're working.

    One really basic and easy method to gauge effort is to be constantly asking yourself 'Can I hold this pace for another X miles to the finish?'

    • If your answer is 'no', then you're going too fast.
    • If your answer is 'yes', then you're not going quick enough.
    • If your answer is 'Oh god, I don't know, this hurts, stop asking questions', then you're probably going just about right.


  • This is what I struggle with tbh, because when I’m pedalling hard on the power, it’s my legs that give out, where as when I’m running it’s heart/lungs/generally blowing hard that is what gives out.
    But I’ll find out either way. Will likely try a 25 mile effort this weekend if I can - but race day and a dry run are very different.

    I don’t have a power meter, no clue of my FTP etc. I’m just on wrist based HRM, had a chest strap that’s died, maybe worth buying another then? My one positive is that I’m fairly familiar with perceived effort from fell racing so I do have a sense of what an hours max effort should feel like.

    Thanks for all the advice everyone! I better not fuck it up now.

    @Aldosterone has even sorted us a LFGSS CC skin suit, just hope my belly fits in.

  • If you're using a cycle computer, you may be able to pair your watch to it. Not something I've tried personally, but feels like something one should be able to do. (I think Garmin does this via 'Extend Display' mode)

    I wouldn't recommend constantly looking down at a wrist watch while doing a TT.

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