Wheels in

 

Another easy job, the W-irons locate into holes in the solebar that match up with a lug on the front. You can't go wrong, and you would have to work pretty hard to fit them wonky. 

Into the bearing hole goes a slippery plastic bearing. Maybe there are brass alternatives, but for the amount of running I anticipate, I can't see this being a problem. Judging by the quality of the kit, the manufacturer knows what he's doing!

Solebars drop in, with some more raised lugs to set the distance apart. Wheels need to be fitted at the same time, i can't see you can spring the sides out to do it afterwards, A bit of juggling, but nothing too difficult, these parts are chunky after all. 

There's a little allowance to slide the solebars side to side to ensure the wheels are perpendicular to the sides. A good wash of Mek fixes everything in place, and I've even been careful enough not to damage the paint for a change.