I'm going to buy Dalbello Aerro 67 ski boots and Rossignol Freeski 100 L bindings. If I get these bindings mounted at my local ski store, will they be compatible with the boots?
First off, I'm not really "in the know" about your query. So no answers here.
But your post caught my attention because just yesterday while I was in a shop that specializes in the latest demo equipment, I asked the following question:
"I've read that some of the bindings these days offer wider boot to binding platforms so that there's more boot contact towards the edge of the wider skiis; for better over-the-edge leverage. This makes sense, but do recent model year boots have wider soles than in the old days before wider ski technology?"
They told me no, not really.
Maybe the sales tech was wrong. But if not, I'm wondering then what's the advantage of bindings with wider platforms if the boot sole is still narrow. How does this impart better over edge performance?
Any insights from the "gear savy" as to the logic?
All current (since the late 70's) DIN boots and bindings are standardized in dimensions so any adult boot will work with any adult binding.
Part of what you have been told is marketing, part is accurate. In reality, what helps with performance on a wider ski is a laterally stiff binding. A boot is only so wide and the binding platform doesn't need to be any wider than the boot, any wider does not increase anything. A stronger laterally stiff binding will allow a ski to perform to its capacity. Racer have used metal bindings, not because they are heavy, because they are strong. While a Salomon S810 and S920E (or STH20) might look the same, if you had two typical 90mm+ wide pairs of skis like say a Mantra and skied both back to back, one with a 810 and the other with a 920, you would feel a huge difference in your connection to the ski and the snow.
The way you can tell is adult boots have an "A" on the sole where the boot center is and Juniors (or Childrens) have a "C". The difference is the height of the toe and heel piece that interface with the binding. I don't believe bindings are marked the same way.
So adult boots with adult bindings and junior boots with junior bindings.