Originally Posted by
CACycling
The reach is the distance from the anchor bolt to the brake pads and doesn't effect how the brakes are mounted. There may be calipers available with the older bolt-through mounting system.
There are; tektro make a number. But every local bike store I've asked about them denies their existence, even when told part numbers. I suspect this is mix of "not obvious (or available) in the QBP catalog" and "damn customers can't know more than we do". Thankfully, there are internet retailers who happily sell them.