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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    

  • My new Trionic walking partner…

    I had read positive reviews on the Trionic Sports Veloped after research on a suitable walking aid. I have been using Norwegian walking poles but my osteoporosis and arthritis were limiting my walking. I ordered one through Mobility Smart in Preston …

  • I have been meaning to write for some time to thank you!…

    I have been meaning to write for some time to thank you for all the help my Veloped gives me - I use it for hanging out the washing and fetching peat from the shed as well as walking on the mostly rough terrain here on the Isle of Barra in the Wester…

  • Vivien…

    The Veloped Trek has enabled me to visit the beach regularly- something I hadn’t been able to do for a long time. I have also been to an outdoor festival and was able to travel around the fields to see the stalls and the bands in the music tents. T…

  • Makes mum active…

    We bought the Tour 12er for our 92-year-old mother so that she can continue to walk her beloved forest paths after a triple pelvic fracture, which has permanently limited her mobility. After initial protests (I don't need a rollator, I'm not that fra…

  • My Veloped makes me safe…

    Great to be able to take brisk walks with my Veloped in the green area close to my neighborhood. To get there, I pass street crossings, where the Veloped smoothly climbs up and down the curbs. Since the Veloped is easy to "fold" and load in the trunk…

  • I am delighted…

    I am delighted with my Trionic Walker which is superior to the other products I have used.
    It was delivered fully operational, stable in use and the pneumatic wheels ensure comfort for the wrists and arms. I have so far used it in an urban environm…

  • A truly excellent purchase…

    This machine re-writes what it means to be a "Walker". It far exceeds our expectations regarding ease of use and suitability as an outdoor walker.

    The unit is enabling my spouse, who has PD, to walk faster and straighter.

    It is only used ou…

  • Hello dear Team Trionic!…

    Yes, I have received the catalog. In the meantime, I had already viewed it in PDF and therefore I ordered the Trionic Veloped because there is no comparable product in the world. The Veloped was delivered last Monday, I couldn't wait.

    I am really …

  • Great product. Does everything it says it does on the website.…

    Great product. Does everything it says it does on the website. Has helped me walk further and faster. As an avid dog walker it is especially good over fields. Would recommend it to anyone who likes to get out and walk in the countryside,…

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