B&D's Dynafit heel shift plate lets you to move your Speed Radical/Turn/Vertical/Comfort heel binding in 6mm increments forward & back allowing you to adapt to different size boots without re-drilling.
Total shift 36 mm (18mm front and 18mm back).
Includes all screws needed.
Note: the middle position is negated due to mounting screws.
1/4" thick aluminum. Weight 130g/pair.