Boardman Urb 8.9 Tyre advice

m4ttc
m4ttc Posts: 41
in Workshop
Not sure if this is posted in the correct place. Apologies if not, feel free to move.

Does anyone know the max tyre size that i could put on a 2021 Boardman Urb 8.9 ?

I was thinking of putting some schwalbe g one alround to be able to do some light trails

TIA

Comments

  • slowmart
    slowmart Posts: 4,516
    edited January 2022
    What size is internal measurement of the wheel rim?

    https://www.lightbicycle.com/newsletter/tire-size-chart-for-bicycle-rim.html#:~:text=For example, with a range from 1.9”%20to,rim%20profile%20to%20the%20tire%20maker%20for%20recommendations.
    “Give a man a fish and feed him for a day. Teach a man to fish and feed him for a lifetime. Teach a man to cycle and he will realize fishing is stupid and boring”

    Desmond Tutu
  • N0bodyOfTheGoat
    N0bodyOfTheGoat Posts: 6,063
    You will want ~5mm+ clearance around the frame tubes and fork.

    425mm chain stays will be a limitting factor, my road bike has 415mm stays and can take a 32mm tyre.
    ================
    2020 Voodoo Marasa
    2017 Cube Attain GTC Pro Disc 2016
    2016 Voodoo Wazoo
  • m4ttc
    m4ttc Posts: 41
    Thanks for the replies everyone! I actually fired an email off to Boardman a week a or so ago and they replied this morning saying stick with 700 x 32mm unfortunately. I fancied 38mm G One alrounds. I have Continental GP 4 seasons 32mm at mo as using it on roads only

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