DT Swiss is known for making some robust rims, but I’d say the ones you’re on are probably a little too light for riding up north (if that’s where you ride). And if you’re a big or aggressive rider, I wouldn't go too much wider than 30mm internal. Go too wide, and you may dent the wheels because some rim profiles (Stans) will be too shallow. Also, the spokes and build really determine the amount of flex vs. the rim itself. Good hubs and spokes, vs. the crap some pre-made wheels come with. In NJ, most folks go too light on the spoke gauge. For me, riding a 29 vs. 31lb bike makes zero difference. My next rims will be with the XM481.