I've just had a look and with the 47mm Horizon there's maybe 4mm each side so it might be a tighter fit than I first thought, although it depends on the shape of the tyre and how much the sides balloon out.
They the file tread ones? They're basically slick right? Was looking for something with a bit more grip compared to the Horizons. Once I kill the Horizons this wheelset/bike will be primarily off-road.
I've just had a look and with the 47mm Horizon there's maybe 4mm each side so it might be a tighter fit than I first thought, although it depends on the shape of the tyre and how much the sides balloon out.