That's cos your bikes are frightened of hills, rivers, trees, valleys , lanes, etc. Your bikes don't like coming out of the van , scaredy bikes they are ...........
I'm voting for Pete, he's made the effort to get out and some lovely scenery there.....................
There's also the fact that it may just stop the whinging
Absolutely , it's the weight of the valve train that might be the problem. I'm sure they must've cracked it or they wouldn't be going racing with it. I'm very interested to see how it performs.
Tayna batteries are very good over here but even if they will deliver to France you may get clobbered with import duty . Brexit
https://www.tayna.co.uk/motorcycle-batteries/yuasa/ytx16-bs/?gad_source=1&gclid=CjwKCAiA8NKtBhBtEiwAq5aX2LNQWlVVJ2grzvHcUwQY9bNG0OT0usTHd7UtJASJQh5fSaecj_qkvxoCdY0QAvD_BwE