since talking about thin bumpers .. my 88 zilla had a thin bumper when it came in. replaced it though with an aftermarket one. i guess it was the same scheme as zillafreak mentioned earlier. I can double check that by looking at the pictures before my resto if needed ? lemme know.

I found this on Partzilla where it saying modell H should have the "thin" one. Now i need to find one Is your old bumber for sale ?
https://www.partzilla.com/catalog/suzuki/atv/1987/quadracer-lt500r/footrest

Runar