Does trimming let the shock stroke deeper and does this impact shock life?
I know not trimming may cause early bottoming out.
Thought question.
A bump stop is basically a secondary spring and is used to control the end of travel behavior. Distance from end of tube, Contour and material describe engagement and progressive rate. Bump stops have a free length and a block height.
With the same shock length “end of tube - center of lower fastener” if you trim a bump stop your shock will stroke deeper because you changed the block height. Does that impact your shocks life? It depends on the brand. Your car is using definitely more compression travel!
In terms of adjustable Koni’s it might not be the best idea to shorten the bump stops because you might hit the adjustment feature while driving over bigger bumps.
I understand why guys like to trim bump stops. In the OE world many manufacturers I worked with have a distance between end of tube and bump stop of ~15mm. If you lower your vehicle now by 25mm you are already riding on the bump stops. With the progressive rate of these bump stops it feels to bumpy.
What is the solution if you want to lower your car? If you don’t like the ride and the shock supplier doesn’t recommend or provides a different bump stop try to find a shorter one that has at least a similar block height / block force.
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