You can get away with a 23.4 post from Decathlon, but you need to shim it up a bit or hope that you can tighten the clamp up enough without anything snapping.
http://www.decathlon.co.uk/EN/l330-basic-diam-23-4-25-27-2-35412401/
@Sam started
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You can get away with a 23.4 post from Decathlon, but you need to shim it up a bit or hope that you can tighten the clamp up enough without anything snapping.
http://www.decathlon.co.uk/EN/l330-basic-diam-23-4-25-27-2-35412401/