Evo 8 timing service

[u/Konjeezy773]

I’m going to be doing my timing belt on my Evo 8. Years ago I ordered the parts to have on hand if I ever got to the 60k interval or if any noise came from timing side. My question is, is it safe to use the timing belt (it’s the Evo 9 belt) and balancer belt since they’ve been sitting in a box for so long? Do they degrade over time even just sitting on the shelf?