Just received an email from the bro-in-law with the following message:
"this is Dad during the ride out on the saturday (170kms)
He does all right for an old bloke.
I have to keep remembering he is 75 years old.
hope im still riding when im 75."
It was an Adler rally ... he is pictured below on his Adler about to head off. This was his first bike (I think) he has had it since new.