
Mount to Coast
H1
Versatile road-to-trail, but struggles on wet, technical downhills.

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I have both the UV and the EW2 and definitely would recommend the UV. It’s a very good shoe. The EW2 isn’t bad, but not a fan of the fit on the heel for running hills. The UV also has pretty good durability for me so far. Got about 700 miles on my first pair, whereas normally get 300-400 with altras.
topos! your feet sound like mine, im a us size 5-6 so fairly small foot, wide in the forefoot and toe splay but narrow heels and low volume in general. i have the topo ultraventure 4 as trail runners and trailventure 2 WP for boots and i love them. i cant do zero drop like altras because it triggers my plantar fasciitis but topos have a shape that works for my foot with some padding and a small 4-5mm drop. i do still heel lock the trail runners but theyre only wide in forefoot and not in the heels like buying “wide” sizes can be. merrells have too tapered of a toebox and squish my pinkie toes.
I've run those trails and in Speedgoats and Ultraventures, either would be fine. If you're running the 50K, the Peregrine could work too. It's a good idea to have 2 pairs, and I'd rather use both in training so they feel the same for race day. 1 pair will work fine a lot of the time, only consideration would be if you had 300 miles of trail training before race day or something like that, maybe not ideal to start a race with busted shoes.
I’ve done about 4000km in Ultraventure 4s this year (5 pairs) and more recently just over 1000km in Experience Wild 2s (2 pairs). Personally I find the EW2s faster and more fun. That being said both have been fantastic for me in terms of comfort - I am however light-ish and could see the EW2 foam struggling with increased weight. What’s not been great with either is the durability of the uppers. In every case that’s been the weakness that has necessitated maybe slightly premature replacement - the soles could probably have gone a few hundred Ks more. My best advice would be to try both ovrr the course of your training as I suspect you’ll need to replace them way before the summer
I just put 500+ miles on my Asics Max Trabucco 3 through the mountains and where my go tos for post Helene trail clean up and I got to say, those babies are indestructible.. the only thing I tore up towards the last 80mi was the back of the heel part/material, which could have been avoided and even now still repaired with some heel patches. I’m now running with Topo Ultraventure 4 because I needed a wider toe box option. These only have a little over 30mi on them so I can’t speak to the quality just yet. I can’t speak as to how these may fit you but the quality/comfort of the Max Trabucco is definitely on point.
Topo Ultraventure 4 is great for most runs. For long efforts, or if you want extra cush, I love my Topo Vistas. I had the latest MTN racers but they ripped my heels to bits so can’t recommend them.
I have the Ultraventure 4 and it’s a really solid shoe. If you like stack and cushioning though, I find the Topo Vista fantastic. Big stack, really protective and has a Vibram Megagrip outsole. Love it.
I have both and the Topo Vista has more aggressive lugs than the Ultraventure and uses a different compound. It has Vibram Megagrip which is significantly grippier. The midsole is far better too, much more cushioning for long efforts. An all round better shoe.
the Ultraventure seems a bit more roomy than the Mtn Racer in the mid foot. I have both. should be a good option for your requirements. Midsole is lower and less squishy than the Vista and definitely feels more stable. They do it in a grey colour looks good around town.
I had a very similar experience with the latest MTN racers. They gave me the worst heel blisters I’ve ever experienced during the first 20km of an ultra and I threw them out immediately after. I’ve got on much better with the Topo Ultraventures and Vistas which I’ve used on 60 and 80km runs respectively. No issues with either. It may be worth looking at these as in my experience, the Mtn Racer is not a fair representation of Topo trail shoes.

Mount to Coast
H1
Versatile road-to-trail, but struggles on wet, technical downhills.

Altra
Lone Peak Series
Spacious toe box, but cushioning and durability are polarizing.

La Sportiva
Prodigio Series
Great technical grip, but unstable for some, with sizing issues.

Nike
Pegasus Trail Series
Versatile for non-technical trails, but poor on wet, technical.

Mount to Coast
T1
Lightweight, cushioned; but lacing and underfoot protection are issues.

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Salomon - Speedcross Series

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Hoka - Speedgoat Series

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Mount to Coast - H1

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Salomon - Genesis Series

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La Sportiva - Prodigio Series

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Mount to Coast - H1