An Anti Friction Device or AFD is found on all binding toe pieces to reduce friction so that the toe of the boot can release freely when necessary. There are three basic types:
| 1. |
A fixed Teflon or similar low-friction plastic pad under the boot. It’s especially important with this type of AFD that the boot soles are clean because grit contamination between the boot and AFD can result in too much friction for safe operation. |
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| 2. |
Rolling track. This type of AFD is self-cleaning and operates like the tracks of a tiny bulldozer. Because the AFD moves, it’s not affected by grit on the boot sole. |
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| 3. |
Sliding AFD. This type of AFD slides in a track so that the boot can move out of the toe piece safely. A sliding AFD is not affected by grit on the boot sole. |
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