Ram Mount - whats the ball size for the standard Zumo 550 Mount?

[marty600]

Hiya All,


I'm going to ty that "2 short arms, with a double ball between them" idea.


Whats the ball size though? 1" or 1.5"?

I see 2 on offer:
http://www.ram-mount.co.uk/double-1-...er-p-1013.html
and
http://www.ram-mount.co.uk/double-15...ter-p-995.html


Hope you can advise

Bit late at night, don't fancy nipping into the garage and measuring the Ram mount ball sizes!


Cheers
Martin