Reached out to transition:
"Bosch motor mounting screws are spec'd to be torqued to 30NM. When installing these, Bosch recommends installing WITHOUT grease or loctite."
The previous 800 and 600 were same diameter just different length is my understanding, so it seems this is something different. The latest video on the Atherton bike shows a very slim downtube too which I assume is the new 700.
I hope I'm proven wrong but a 600wh extender would be huge and heavy would it not? I'd be surprised if it could even fit. Would have thought a 300wh would be more in fitting.
Big difference in downtube size there.
Also interesting frame detail:
"Three Geometry Adjustment Systems (0.5°/1° Headset Cups, Chainstay Flip-Chip)"
I'd add for cheaper purchases you can definitely still do that, but for something as expensive as an ebike it makes a lot of sense to do your research.
If you're in the market for a Bosch equipped bike it's sounding like there could be some fire sales later in the year 🙃
(not a dig at Bosch's offering at all, just it's going to be a tough market)
The batteries aren't changing until 2027 I've been told, there's 2 new motors, both more powerful than the M1. And, 3 new screens, at different tiers with different features. Bottom tier is display only, not touchscreen.