Cheers Craig, your order's been boxed up and will be sent 1st class on Monday. Do let me know how they get on!

Re Dave: The bearings are press-fits (there's two, another on the hidden side of the Nylon front section), which is a more permanent solution in Nylon (as opposed to aluminium say) given its ability to deflect and maintain a compressive force on the outer bearing ring. They're not going anywhere basically, especially considering the lack of axial loads on them