My mini bikes all have axle sliders, peg sliders, hand gaurds and barend sliders. The peg sliders and bar end sliders take most of the abuse. So far knock on woodi have not needed to replace a single lever from a fall. And my 150r has been on the ground more than dirt.
My 150r is stock height with stiffer springs and lots slower valveing and still drags foot pegs while knee down ridding style is used. It has 125gp slicks on 17 inch rims, if you get them warm the lean angles are pretty nuts.