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Part XII · Cycling workouts

Aerobic Ride: Easy Riding, 30 Minutes to 4 Hours

The bike's easy session. Conversational riding at a lower heart rate than on foot, with the cadence doing the choosing.

Workout at a glance

Aerobic · Endurance base, cardiac efficiency, fat oxidation

30–240 min

  1. 01

    Ride

    Breathe in and out through your nose

    You could keep this up for hours

    30–240 min

    HR 62–76% · RPE 3/10

The lesson

  1. 01

    Easy aerobic work on the bike

    The same intent and physiology as an aerobic run or swim. It builds the engine at a conversational effort.

  2. 02

    Expect a lower heart rate

    You are seated and using less muscle, so the same effort gives a lower heart rate. Ride at 62 to 76% of maximum, not your running numbers.

  3. 03

    Breathe through your nose

    Relaxed enough to hold a full sentence, RPE 3. Speed tells you almost nothing on a bike, so breathing is your best check.

  4. 04

    Spin at 85 to 95 rpm

    The same speed at 60 rpm tires the legs, and at 90 it trains the heart and lungs. If you cannot hold it, change to an easier gear.

  5. 05

    Keep pedalling

    Freewheeling on descents and at junctions takes minutes off what you trained. Keep light pressure on the pedals downhill.

  6. 06

    Change gear early on hills

    A hill in the wrong gear pushes you to threshold. Spin and let the hill be slow.

  7. 07

    Ride 30 minutes to 4 hours

    Past two hours it counts as your long effort. Past four hours, eat and drink as you go.

· revised August 22, 2026heart rate zones · aerobic volume

The app

You don't have to work out where this fits. The app does that bit.

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