I sent an email to Surface 604 on 3/25/19 to get information about the availability and any changes on the 2019 Rook. This is the answer I received:
"2019 bikes will be available around May. The changes are going to be very minimal and will be featuring slight upgrades to the torque sensors. Gordon Lai - Sales and Service Manager "
"2019 bikes will be available around May. The changes are going to be very minimal and will be featuring slight upgrades to the torque sensors. Gordon Lai - Sales and Service Manager "