Originally Posted by
LesterOfPuppets
I've thought about doing it on older MTBs with drilled steerer and seatstay bridges but haven't gone to the trouble of sourcing the brakes I'd need for it. Seems like fairly standard reach road calipers would work on the fork of my Mongoose. They'd have to be nutted and the bolt would have to be long enough to accommodate the 1 1/8" steerer.
Why? You could enlarge the hole in the rear face of the fork crown with a 5/16" drill and use a long recessed nut. They are available as long as 30 mm which should reach through about anything.