What makes the new KICKR and new SNAP compatible? Why isn’t my old Wahoo trainer compatible?

When using the KICKR CLIMB, bikes rotate around the rear wheel hub. The rear dropout attachment points on the new 2017 KICKR and KICKR SNAP models were specifically designed to accommodate this rotation, while previous Wahoo trainers do not have the freedom of motion necessary to rotate as needed. Using the KICKR CLIMB with older trainer models may cause permanent damage to your bike and/or trainer.