You´re welcome 
The "Initialisation commands" should be
ATWM8012F1013E\nATSH8112F1\nATFI\nATSH8012F1
- Set keepalive message
- Initialize with 0x81 header
- start communication
- reset header to 0x80
Anything else is just additional information.
Now, the part is missing, where you can enter a custom PID (0x08) and translate the response to single values, like RPM, speed, etc.
This will definitely be a new feature, but I cannot tell you when this will be published in racechrono.
Until then, you can use a Laptop or a Smartphone to play around with it. Take a Bluetooth Terminal application and send the above values to your bike.
After initialization, you can transfer 21 08 to your bike and it should respond with 51 values of data at once.
Good luck