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21mm Rugby Studs

21mm Classic Rugby Studs


Box of 12 x 21mm Scrum Strong® Classic Rugby Studs.

  • What boots will they fit?

    Here's a list of the boots that these studs will fit (amongst many others):

    • Adidas Kakari SG
    • Mizuno Morelia / Waitangi / Monarcida
    • Gilbert Kaizen
    • Asics Lethal Warno / Tackle / Charge
    • Puma H8
    • Canterbury Stampede

    If you're unsure whether these studs will fit your boot, send us a photo of the bottom of your boots and we'll let you know! If these studs don't fit, then our 13mm & 18mm slim studs will do the trick!



    A tool is not provided as we recommend using a pair of pliers or a multi-grip tool. Take care not to overtighten studs as this can damage the internal thread on the boot. We also advise limiting the amount of time and pressure placed on studs when walking on hard surfaces (like concrete) as this can damage the internal thread on the boot.


    For superior scrummaging performance, we recommend you replace your studs once the flat bottom edge starts to round.

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