Which ones? I quite like the look of them both and need to replace my 10+ year old M121s. Any opinions before I try to find a shop with both in stock to try on?

ive 181s and theyre great for my skinny feet. however, they stink like a cat pissed in them, hope they changed smething in the 182,s. none of my other footwear does this. i also only run them on non caged pedals as the cleat is too deep for dx’s.

I got some 182’s last year and they stink like a cat’s pissed in them as well. same as my MP66’s they stink as well.

They are very good, a little narrow compared to my other shimano shoes (all size 43) I like them, but i also have a pair of shimano boot’s as i like the idea of a bit of ankle protection.

I’ve used them right up to this cold spell and they have been great.

you need to decide if the extra coverage offered by the AM50 is a requirement or not.