I get regular emails asking how to adjust the Dynafit binding heel unit clearance, e.g., the space between boot heel and binding. This adjustment is critical for the performance of the binding — many complaints about Dynafits not working can be traced to this adjustment being off. While I did cover this in my famous Dynafit FAQ, it’s buried and hard to find. I’ll add the photo below to the FAQ so the info is easier to get. Meanwhile, here you go!
|With all Dynafit backcountry skiing bindings the heel space adjustment is critical. The TLT model shown above requires a heel space of 4 mm, which is set by using a shim and adjusting the binding for/aft position until the shim is snug but not jammed. The confusing part of the process is that the TLT has a bump that the shim should be set on top of, as shown in the photo. If you place the shim in front of the bump you’ll end up with too much space. The Comfort model Dynafit binding has the same adjustment, only the shim/space is 6 mm.|