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What wheel size is best for an outdoor walker?

For an outdoor walker, wheels of 12–14″ (31–36 cm) give the best balance of comfort, manoeuvrability and stability — they roll over uneven pavements, gravel, grass and small obstacles far more easily than small, hard castors. Trionic offers three wheel sizes so you can match the walker to your terrain.

Trionic wheel sizes:

  • Walker 9er — 9″ / 23 cm SuperSoft solid tyres: most compact and puncture-free, ideal for pavements and easy transport
  • Walker 12er — 12″ / 31 cm pneumatic tyres: the everyday all-rounder for mixed terrain
  • Walker 14er — 14″ / 36 cm pneumatic tyres: maximum roll-over for rough trails and forest paths
  • Trionic Veloped — three wheels with large pneumatic tyres and a patented Climbing Wheel for true off-road terrain

Last updated: July 2026.

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Product Reviews    

  • Walking again…

    Since buying my veloped I have been able to walk around my village and walk to my freinds again. By taking off both front and back wheels it even fits into my sports car so I can take it out for days out. It has given me a new lease of life. I only w…

  • Thank you…

    Received my Trionic this week and am very impressed, improved my mobility.…

  • Technic of folding and holding…

    I have to go through three tight doors to come into my apartment. To keep the Veloped folded, I am holding it together with a small bungee cord. Is there a better idea?

    At the locker, the small cover is sadly not holding and slides always to the s…

  • Very positive…

    My husband is very satisfied with the Walker; It is admired everywhere and rated by people interested in technology as a very great device.
    It is very pleasant to walk on cobblestones and uneven sidewalks.…

  • Remarkable...…

    Sturdy, beautiful, simple to "assemble" (just attach the wheels) and a pleasure to use; enables me to walk my dog endlessly, whether on city streets or down country lanes, and even on the beach, in spite of the arthritis that has limited much of my d…

  • Perfect…

    I bought this rollator for my mother. She is very happy with it and it gives her the confidence she needs. She can walk on her own whenever she wants without the fear of falling. The Veloped is perfect for country paths and roads. It looks elegant a…

  • The Veloped has become my faithful companion...…

    The Veloped has become my faithful companion. I can only recommend it. My range of motion has increased fourfold, giving me a better life quality. Thanks to the team for such a design. I would like to see it distributed more in Germany as well.

    My…

  • Veloped Tour…

    I am very satisfied with the Veloped. It allows me to walk better and to be free to live again. I am really glad to have it.…

  • Veloped Sport…

    Very pleased with the Veloped Sport; it copes brilliantly with the rough paths and the autumn leaves in the local park.

    David, Kent, UK…

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