>>1037745Thanks! 650Bx48mm, smooooooooth
>>1037746I'm stating it generally rather than specifically - any decent rigid MTB frame will do fine, as they're designed to take hits. Way better than a road bike frame that may feel too flexy/spongy when loaded up with cargo racks, or a foreign "tough for 3rd world conditions!" bike of dubious origin and quality.
The Troll specifically is nice because:
1) you can buy a new one today. There aren't a lot of rigid 90s-style MTBish frames being made nowadays; most new hardtail MTB frames have much slacker headtubes intended for modern suspension forks.
I like picking over Craigslist for deals but OP sounds like they don't have the skills to piece a bike together themselves. It'll be easy to get a shop to order a frame and build it up for them, and a single speed build should be relatively cheap.
2) Unlike many MTB frames, the Troll has all the brazeons you could ever want for racks/fenders/etc. You'll note my bike
>>1037742 does NOT have rack mounts on the frame... I had to get a seatpost collar with rack mounts and a rear rack that fit on the axle, and then due to the hooded rear dropouts, some spacers and an extra-long QR. The Troll won't need any of those bodges.
3) Most bikes designed for loads - touring bikes, "adventure" bikes like the Salsa Fargo or Vaya, etc - are designed around drop bars. The Troll is designed for flats and would also build nicely with more upright riser bars.
4) And finally, although I mentioned it already, the Troll is explicitly designed to make single-speed setups easy, with the rear-facing track forks. Yeah, yeah, you can convert a bike with normal dropouts to single speed by replacing the rear derailleur with a chain tensioner - but if you know you want a single-speed, you might as well get a frame that's meant for it.
The other frame that comes to mind is the Soma Wolverine, for most of the same reasons - beefier frame, rack mounts, dropouts for single-speed.