colnago62

bike uppers are designed not to stretch. I wonder if that forced stretching takes some years out to the life of the shoe?

MoAlpha

Ha, yeah. Mine are molded LPU over aramid cloth. Good luck stretching that!

redcon1

I've stretched 3 pairs of bike shoes, all Shimano, over the years. One MTB racing pair still going strong for 11 years. Any upper will stretch a little bit.. even stiff synthetic bike shoes.

Bob Ross

I didn't see any mention of S-Works in your OP, those are the first shoes I recommend when anyone mentions "wide feet". Very comfortable, very accomodating of wide feet, and as nicely made as any other premium cycling shoe I've seen. The high arch thing can be addressed by the inclusion of Specialized BG insoles.

GhostRider62

If a Sidi Mega is tight, you might need custom shoes

https://www.d2shoe.com/about

PeteHski

I'm using Fizik Tempo Overcurve R4 Wide. They are way more comfortable than the Shimano RC7 they replaced. The RC7s were stiffer, but not in a good way for me. The Fizik R4 is not an all-out race shoe, but has proven to be a great all-day Sportive/GF shoe for me.

InvertedMP 

Received my Sidi Ergo 5 Megas today. Initial fit they feel really good. Stuck my Specialized insoles in from another shoe and I am happy enough to keep them. I think they will work really well. I am also warming up to my RC902s a bit more. I think the pattern I am starting to see is that I do not like a tubbed carbon type of shoe that has carbon that wraps around the foot and up along the sides.

The RC902s are stiff in the sole which feels good transferring power, but the structure of the shoe it’s self is not stiff like I found with Bont and the Lake CX403. I’ll report back but I like what I feel so far.

Riz98

I ordered the Shimano RC7 Wide and initial fit is great. This is my first cycling shoe but went around the the LBS's and none of those shoes fit at all. Tried to size up with a couple of the shoes and they were all still too tight. Normally wear between 8.5-9 wide and went with the 43's based on reviews from others that have the shoe.

PaulRivers

Maybe not what you're looking for but in a similar situation what finally solved my problem was going back to flats.
Five Ten Freeriders fit my wide (but not super wide) feet.
My initial pedals were only ok but then I got Dmr Vaults and together with the freeriders they're the most comfortable thing I've ever used on a bike. More comfortable than regular shoes walking around even.

It's what worked for me.

PeteHski

I use FiveTen Freeriders on my mtb for trail riding, but would never even consider them for road riding. For a start you would need to fit flat pedals. They are comfortable though.

InvertedMP 

Interesting, you use them for road biking? I absolutely need a road bike shoe.

I have had a couple good rides with the Sidi Ergo 5 Megas and I am mad I didn't give them a chance earlier.

SapInMyBlood

I also use mtb flats for my road bike. I have wide dumb feet and just can't find comfy road shoes. I've tried lake, bont, s works wide, etc.

Inov8 ultra minimalist trail runners (wide toe box), specialized blue BG insole, and Bontrager MTB flat pedals.

I did a 600km audax ride in 36 hours on that setup two weeks ago 👍

PaulRivers

Yeah. I'm not a racer and fashion wise I aim for mountain bike fashion personally. I remember finishing a ride with the typical foot numbness starting halfway through and then staying numb afterwards, then I read someone on bike forums talk about how five tens kept your foot solidly connected on the pedal and gave it a try - I bike for enjoyment why keep suffering through pain for something I'm doing to enjoy myself with? I don't see any practical advantages to clipless for me having used both extensively.

I just remember the first time it really hit me, I stepped off the bike at the end of the ride and my foot felt totally normal. No numbness, no hotspot, no pain, I was so used to going through it I had just thought there was no alternative. Some peoples feet seem to handle clipless just fine but mine don't.

On the topic of wide shoes I noticed Lake offers not just Wide but an Extra Wide category fyi:
https://lakecycling.com/collections/extra-wide

Wish you luck finding something so you can ride comfortably.

PaulRivers

Lol...well in the fashion contest I lean more towards mountain bike shorts and a t-shirt anyways so I suppose it's not really a drawback for me...

PeteHski

I have to say Five Tens Freerides are very comfortable and suit wider feet nicely. They are easy shoes to get along with and certainly my benchmark for mtb. Finding a clipless wide road shoe with similar comfort is a bit more of a challenge, but not impossible. I've found that staying away from super-stiff carbon soled race shoes is a good strategy and has the bonus of being considerably cheaper too! Fizik got the balance between stiffness and comfort pretty spot on for me with the Overcurve R4 and the wide fit version has a very generous toe-box. I can wear the R4s all day long without any hint of foot numbness or pain (which I am quite prone to suffering) just like the Five Tens, but they are way lighter and I just prefer being clipped in when road riding. I've always wanted to try a pair of Lake shoes in a wide fitting at some point, but shoes have gone off my radar since I don't currently have any foot issues to complain about!

PeteHski

The drawbacks for me have zero to do with fashion. Not sure where you got that idea from.

KJ43

Yup. I use the standard S-Works Recon and my foot isn't very wide, but it has a very generous toe box. They have a wide version as well. Great shoe, super comfortable and super stiff. Specialized has custom insoles with three different arch heights. I highly recommend looking into the S-Works line.

rm -rf

The Sidi Mega MTB shoes weren't quite right for me. I also had no luck finding cushy insoles to replace the thin Sidi insoles. I couldn't find insoles wide enough that still were reasonably the correct length.

I recently got Lake MX241 in Wide. The LBS only had the road shoe version of these, and I tried those on for fit. These fit exactly the same when they arrived.
I have foot joint problems, and not much padding under the foot, so Oboz hiking insoles worked great on these shoes. My riding comfort much better now, I wish I had gotten these a few years ago. These shoes are very expensive, but completely worth it to me. I got these slightly large, and wear thicker socks for better padding all around (and better in winter too.)

It's got to be difficult if you can't try the shoes on in advance.

InvertedMP 

I threw Specialized insoles in my Ergo 5 Megas and they work really well.