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Cross trainer C28, C29, E4 or E50 – which one suits you?

Rear or front drive, 16 to 26 kg flywheel, foldable or with touch display: our five cross trainers compared side by side.
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  • Cross trainer C28, C29, E4 or E50 – which one suits you?
  • October 10, 2026

    Cross trainers C28, C29 Step, C29 Pro, E4 Pro and E50 compared

    A cross trainer works your legs, glutes, arms and endurance at the same time while being easy on the joints. Our five models differ mainly in drive (flywheel at the back or front), flywheel weight and maximum load. Here you can see which one suits you.

    All models at a glance: cross trainers

    The differences at a glance

    FeatureC28 RunnerC29 StepC29 ProE4 ProE50
    driveRear driveRear driveRear driveFront driveFront drive
    ResistanceMagnetic, 16 levelsMagnetic, 16 levelsMagnetic, 16 levelsMagnetic, 24 levelsMagnetic, 32 levels, electric incline in 21 steps
    flywheel weight16 kg16 kg16 kg24 kg26 kg
    Stride length39 cm40 cm––53 cm
    Power range25–350 watts5–200 watts–10–350 watts–
    Programmes2421131032
    Max. user weight120 kg120 kg120 kg130 kg150 kg
    DisplayLCDLEDLCDLCDTFT touch display with streaming
    AppsKinomap, ZwiftKinomapKinomap, ZwiftFitshow, Kinomap, ZwiftFitshow, Kinomap, Zwift
    Set-up dimensions (L × W × H)133.2 × 54.6 × 163.5 cm156 × 80 × 167 cm153.4 × 59.4 × 173.6 cm172 × 63.5 × 179 cm172.1 × 72.4 × 163.7 cm
    Weight49.5 kg47 kg46 kg65 kg112 kg
    ExtrasTablet and bottle holderErgometer function, tablet holderfoldable to 90.6 cm in length, ergometer functionErgometer function, USB charging portTwo-way pedalling, Wi-Fi, Kinomap controls the resistance

    The five in action

    C28 Runner: compact, 24 programmes
    C28 Runner: compact, 24 programmes
    C29 Step: rear drive, ergometer
    C29 Step: rear drive, ergometer
    C29 Pro: foldable, Zwift
    C29 Pro: foldable, Zwift
    E4 Pro: 24 kg flywheel
    E4 Pro: 24 kg flywheel
    E50: touch display, up to 150 kg
    E50: touch display, up to 150 kg

    Choose the C28 Runner if …

    • you are short of space: At 133.2 cm long it is the shortest of our cross trainers.
    • you want variety: 24 programmes and a power range of 25 to 350 watts.

    Choose the C29 Step if …

    • you want to train by watts: Ergometer function and 21 programmes.
    • you like calm, even training: Rear drive with a 16 kg flywheel and 40 cm stride length.

    Choose the C29 Pro if …

    • the machine should be put away after training: Folded, it is only 90.6 cm long.
    • you ride with Zwift or Kinomap: Both apps connect via Bluetooth, plus there is the ergometer function.

    Choose the E4 Pro if …

    • you want a particularly smooth motion: 24 kg flywheel and 24 resistance levels.
    • you weigh more than 120 kg: It supports up to 130 kg.

    Choose the E50 if …

    • you want to train like in a gym: 26 kg flywheel, 32 levels, 53 cm stride length and an electric incline in 21 steps.
    • you want to watch films or series while training: The touch display streams directly on the machine.
    • you weigh more than 130 kg: It supports up to 150 kg.

    What sets a cross trainer apart from an elliptical trainer is explained in our article Cross trainer or elliptical trainer?

    Frequently asked questions

    Which cross trainer needs the least space?

    In use, the C28 Runner at 133.2 cm long. For storage, the C29 Pro: it folds to 90.6 cm in length.

    Which cross trainer supports the most weight?

    The E50 with up to 150 kg, followed by the E4 Pro with 130 kg. The C28 Runner, C29 Step and C29 Pro each support 120 kg.

    What do front and rear drive mean?

    With rear drive the flywheel sits behind you, with front drive in front of you. Our C28 Runner, C29 Step and C29 Pro have rear drive; the E4 Pro and E50 have front drive with the heavier flywheels of 24 and 26 kg.

    Which apps can I train with?

    All five connect to Kinomap via Bluetooth. Zwift runs on the C28 Runner, C29 Pro, E4 Pro and E50, Fitshow on the E4 Pro and E50. On the E50, Kinomap controls the resistance automatically.

    All five cross trainers in the shop

    Cross trainer C28 Runner

    Cross trainer C28 Runner

    Rear drive, 16 kg flywheel, only 133.2 cm long.

    View the C28
    Cross trainer C29 Step

    Cross trainer C29 Step

    Rear drive, ergometer function, 21 programmes.

    View the C29 Step
    Cross trainer C29 Pro

    Cross trainer C29 Pro

    Folds to 90.6 cm, Kinomap and Zwift.

    View the C29 Pro
    Cross trainer Smart E4 Pro

    Cross trainer Smart E4 Pro

    Front drive, 24 kg flywheel, up to 130 kg.

    View the E4 Pro
    Cross trainer Smart Stair Pro E50

    Cross trainer Smart Stair Pro E50

    26 kg flywheel, 32 levels, touch display, up to 150 kg.

    View the E50
    in Fitness Wiki
    # Cardio and Endurance Training
    Rowing machine RA11, RA20, RA18 or RA10 – which one suits you?
    Magnetic, water or magnetic plus air: our four rowing machines compared side by side – resistance, maximum load, space and features.

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