Nathan W

Base F1 model here. After shaving down the boot sole rubber (I used a leather skiving knife) they seemed to pivot well enough so I mounted the Alpinists. The LT/XT might have different proportions and even higher toe sockets though, so if you're willing to hack up the boots, just test-fit the toepiece and do all this work before actually mounting the bindings to be on the safe side.

These are perfect, in theory, as I was looking for something low and flat and light, BUT there are two major issues that scared me away from mounting them: 1) BEWARE if you have Scarpa F1 boots - mine rub badly against the toepiece, preventing smooth rotation on the pins. Either the binding's pins are too low (part of the attraction in the first place), or the boot's sockets are too high. Size 26.5 here. Aggressive shaving of sole rubber in the toe may allow them to clear the binding, but I'm not brave eno...

Thanks for the info! In your opinion would another crampon manufacturer be a better match for my F1s then? (e.g. the Harfangs with their two bail shapes) Or should I just stick with the Irvis and mod the bails?