I've knew somebody who bought a shit old banger of a 50cc moped to keep a no claims and a private reg plate for a year or two while not riding. Apparently
No, the adapter mounts where the caliper was with 140mm and the bolts go through the frame into threads in the adapter.
It should come with additional small bolts to go from the adapter to the caliper.
The AR25 is very light but it's not too stiff. Great for a climbing wheel set but for something more all-round, I'd look more at their next depth which I think is the AR35 at ~360g for the flyweight version.
Don't know if it's just me but my Today page has died again. Nothing but an exclamation mark
Edit: (I can do that now!) I restarted the app and it's fixed so probably was just me
Just cancelled due to the price increase. Hardly use it at the moment anyway as I've been ill and I'm sure I can just find some free workouts to follow from my head unit
What colour have you got? I've put a flat bar on my M type but I could be tempted to swap the stem and original bars for proper S type