The adapter puck is required for mounting Wahoo head units to the Pro Blendr Alloy Computer Mount.

– Start with a Blendr stem, add the appropriate base, and finish with Pro Blendr Alloy Computer Mount and Wahoo Adapter Puck for secure mounting of your Wahoo head unit.
Blendr is an elegant, integrated accessory mounting solution
– For use with Wahoo head units and Pro Blendr Alloy Computer Mount
– Removable design alloys quick and easy adapter puck replacement