Be aware their chart is WRONG! The above data is correct. 1993 is the first year for two pairs opposed-piston calipers for front brakes (4 pistons each caliper) and 43 mm downtubes and sliders diameters. 100 mm o.c. spacing for the calipers. OEM rotors are 298 mm.
1985-1992 had two opposed pistons for each front caliper for braking. 84 mm o.c. spacing for the calipers. OEM front rotors are smaller than above.