Why am I finding it so easy to run in HR zone 2 but find it so difficult to maintain zone 2 on the bike. I’m good for maybe 1 to 1.5 hour but after that , nope. I’m following a half distance training program which requires up to 4 hours zone 2. I’ve tried high revs low power and low revs grinding. Just can’t maintain 128 +
Running at HR 150 all day long. Any advice ?


  • YnnecYnnec ✭✭✭
    edited March 1
    Do separate HRmax tests for both running & cycling and derive your zones from those.

    It's very common for peeps to have a higher running threshold (~10bpm) than that when cycling.

    All the best.
  • kijankijan ✭✭
    Maybe its your bmx which isnt suitable for longer rides. There are alot of differences between different bmx models. You should check out a dedicated forum for bmx drivers such as: https://www.bmx-forum.com/forums/reviews-howtos-tech-articles.35/
    They will be able to help you, i think :)
  • GobiGobi ✭✭✭
    PJ - do you mean you are running out of gas so HR is dropping due to not being able to maintain effort ?
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