So one thing that a lot of people do not take into consideration is the fact that bushings when new are not the same height as bushings when nicely worn in and used in trucks.
Not only that, but bones bushings have the highest compression ratio, eg they squash down the most of all the bushings, so as much as you might start with bushings at the correct height (14mm or whatever that might be) they often end up squashing down considerably, so end up a few mm less, in which case you need to have the metal washers in there to bring them back up to the specified stock height that the trucks perform best at.
Not worried if people say otherwise, because I have a 100+ cm shoelace with all the blown out and squashed bones bushings from over the years when people have come back to buy more, but I have definitely seen some people blow out bushings a lot faster than others. This is not based on weight or any specific sort, all three blue soft, yellow mediums and black hard all blow out the same way, but I think I have more mediums on there than any others, but the black ones seem squashed down the most.
Even my favourite old low head Indy aftermarket bushings are about 2mm in total lower now in most of my boards than when new and I don't ride squashed down / tight trucks.
This is why I recommend to people to see what works for them, never just say "You must put this in or leave that out" but I have seen that Bones bushings tend to last the longest when they have metal washers on either side of them, especially after that first break in period without them when they squash down some.
Also there have been bad batches of Bones bushings from time to time too, so some last better than others.
Topic: Truck set-ups (Read 1227189 times)