FEET-Can you fit a CD in your shoes? VERY wide shoes needed but who makes them..

Northwave shoes are pretty wide....certainly the widest I've found. 

I have wide feet and bunions. I take a 45 in vivobarefoot and usually a shimano 46 wide to accomodate width but the shimano's  were too long. I chanced one of the new knitted Rapha in a 45 and a bit of a revelation even with custom moulded insoles. Foot bed is just wide enough and the relative softness of the knitted upper was stetchy and comfortable enough that i could ride all day without any foot discomfort. YMMV but may be worth a try if you can 

I don't have big feet, only 44's, but I have found it difficult to get wide shoes to fit. The only ones that I've found wide enough for me in laced MTB shoes are from Northwave. All others were too tight. 

I can recommend Sidi mega https://www.sidi.com/en/news/ciclismo/sidi-mega-performance-and-extra-comfort - I picked up a pair at almost half price last year as I think the big online shops often have trouble shifting the "odd" sizes...

I have pretty wide feet and yet with the megas have to crank the boa dials almost all the way in, they are so big.  Very comfortable, done a double century this year with no problems at all.  And they look good too of course...

I have wide feet with a square toe box shape. The toe box shape has meant lake, shimano and s works shoes didn't work. The cheapest specialised shoes had a more square and straighter shape so did work even without the wide fitting. Worth a go if your feet sound like mine.

I'd have loved to try on some bonts but no London shops had any to try.

Lake. They do Wide and Extra Wide, although they don't really do the extra wide in any of the cheap versions. They are pretty generous to start with though. I found the the (cheaper) wide cx176 were also wide in the heel, so there was no heel grip - you may fare better. Upgraded to the cx332, and they are lovely. Mouldable, so you get a perfect fit.

various brands do wide fitting shoes, one that springs to mind is 'Lake' - but I think you'll be paying £££ for them (if you hold on to them for 30 years though anything is a bargain!!)

There's a highly rated bike fitter (bike fit james) who often appears on the Francis Cade youtube channel (a fairly popular UK cycling channel). His shop, 'Bicycle' in Richmond, London sells them and he caters for all sorts of shapes and sizes

I usually wear size 13 shoes and have wide feet which can cause problems finding shoes. I don't know if they still make them anymore but I have a pair of Shimano R088 which had a wide and standard option (I went for the wide).

I bought these in a size 50 and they fit well. They were on sale in wiggle at the time I think and were not super expensive, using velcro and a ratchet rather than the more fancy dials.