Originally Posted by
Onegun
The rear brake on any bicycle is at MOST 20% of your stopping power, and that's only under ideal conditions. Really, it's just a "drag brake" useful for scrubbing off speed on descents, which is what we use them for on tandems.
Nope. A rear brake is also useful anytime traction is poor, which is often unless you only ride your bike in "ideal conditions". It's fine to omit the rear brake from a fg since leg braking is good enough in most cases. But riding ss with no rear brake is a bad idea... unless you get really good at dealing with the inherent limitations of a bike that's set up like that, sooner or later you will skid the front wheel on some wet pavement, ice, gravel or whatever, and then you'll likely go down on your low side.
And you missed the point that the bike shown was NOT the bike the OP was necessarily going to get! Whether or not a rack with the dual mounts will fit has to do with frame size as well frame design, and we ARE talking about cheap bikes here. (And no offense meant to BD about "cheap bikes". I own several "cheap bikes" myself, and I think they're great for what they are/were intended to be.)
So to be ABSOLUTELY sure a rack will fit on the bike the OP buys, there are only two sure-fire answers:
Lose the rear brake, or
Go with a brake bolt mount system
The OP asked specifically about Kilo WTs, which if I'm not mistaken was the bike in the photo that was posted.
For mounting rear racks on your tandem you could try fabbing up your own custom straps out of some long strips of stainless steel. If you used steel that was slightly thicker than regular rack straps the end product would be stiffer and likely look nicer than two straps put together. I made my own strap for my nashbar front rack and it works great; it's much stronger and better looking than the flimsy stock strap.