Upgrading my Aventon Aventure 1.0 e-bike to AA2.0 by adding the torque sensor. 

Upgrading Aventon Aventure from the Cadence sensor to the torque sensor, yes it's possible.
Here is the parts you need
1. AA2.0 Bottom bracket. $71.99
2. AA2.0 Display. $72.99
3. AA2.0 Controller. $73.99
4. AA2.0 Crankset. $29.00
5. AA2.0 Dual tail lights. $30.99(L&R)
6. AA2.0 Controller bracket. $?
The tour will be around $278-$290
You can get all those parts from Aventon , By calling them directly at (866)300-3311 and then Select technical support
Ask for a guy name is Laron, tel him Sean told me that you will give me a free shipping.
If you guys have any question, don't hesitate to ask, I'm here too answer any question.