Having had both Shimano wide mtb shoes (XC7) and Lakes in various forms, I can with 100% certainty that you'll get a better fit with the Lakes. The standard MX237 is just as wide as the wide Shimano, with more toe box room as well. The Wide Lakes are wider than other shoe I've seen. And the Lakes come in half sizes, the Shimanos left me in between sizes since they only come in full sizes.
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2014 Cannondale SuperSix EVO 2
2019 Salsa Warbird