When I went to replace the rollers as they had been, I found that they no longer fitted, because the flare on the mounting points is slightly larger, for ... reasons. For now I fixed that by simply fitting them the other way round (ie as in the photo). This does have the advantage that there is a bit more heel clearance, and for all I know that's how they are supposed to be (the other way round gives more stability, but it certainly looks odd). However, these rollers were never great, and I may well switch them for luggage trolley wheels, like I did with the rear rack. You can also use inline skate wheels, but if you do it's critical you lubricate the super-precision bearings only with snake oil. Or you can mortgage your house and buy the official Brompton product.
