Originally Posted by
hybridbkrdr
I just realized I could buy one of those bike and simply have the frame converted to accept V-brakes or even use large caliper brakes.
I don't know which of the Tektro models it would take but might be either the Tektro R559 (53-73mm), Tektro 810C (61-81mm) or Tektro 900A (72-92mm).
These are caliper brakes. You likely won't get any of these to fit around a 2.3"+ tire. The larger the brake reach (and opening), the worse your mechanical advantage. I don't think you'll get very good performance out this setup.