Two that come to mind are fringe contender David Bostice 6'5 but only a 76 inch reach and Sergei Lyahovich 6'4 but only a 74.5 inch reach. Nicolay Valuev is listed at 85 inches but he's 7 ft tall. On the flip side of the coin journeyman Lou Monaco is listed at 5'11 but his reach is listed at an incredible 80 inches.
Chico's arms where short for his height Atleast thats what I remember, I cant be arsed with checking boxrec for the stats.