It will continue to activate for 60 days after the last payment, then the “in motion” module (it’s not klim’s tech, it’s in motion’s tech and subscription) won’t turn on before a ride. It doesn’t need to connect to the internet to work while riding, it syncs over wifi. They specify it won’t stop working during a ride.

Also, you can still buy the system outright. Having a subscription entitles you to a new detection module after three years though