Trek Liquid 25 here. Dual suspension, even. All-terrain tires. I have several versions of commute to choose from. Lots of dirt single track. MUP. Roads. Combinations of all of those. And frankly, I catch road biker-commuters all the time, and the only people who ever reel me in are riding stripped-down road bikes with no luggage. That happens maybe twice a year. So don't be dissin' the MTB commuter.