Looking at the new '22 Tero I noticed the 4.0 has a 2.1 motor @ 70Nm and the 5.0 has 2.2 motor @ 90Nm. I thought the Specialized "2.x" motors were all new Brose S line which were all rated to 90Nm but 70Nm seems to refer to the Brose T line which Specialized calls "1.x". I'm confused as to...