The Hexlox skewer has a tooth that sits in the dropout.
For a trailer, mudguard or any attachment that has a full hole (not a slot) in the dropout you will need to purchase in addition our Security nut without tooth
Also the length of the skewer might need to be extra long. Our MTB rear skewer works to a maximum 'Outside Fork Width' of 157mm - see below;
We have an extra long skewer that works for 'Outside Fork Width' of up to 167mm. This needs to be bought separately here
. Note! this axle needs a #4mm Hexlox.