Once you have removed the pillion footrests? fill the void left behind and cover those otherwise exposed holes in the sub-frame with the R&G blanking plates. This pair of Footrest Blanking Plates have been specially designed to cover/protect both side of the Zero FX ?19- .R&G Footrest Blanking Plates are easy to install? simply screwing into place in-place of the rear pillion pegs? covering those otherwise exposed sub-frame holes? that if left uncovered could result in corrosion of the frame/subframe from dirt? water and debris buildup.