how wide a tyre , really depends on what you ride on....
I have found for lose gravel a 120 works
better than a 130 or 140..
look at a rally car... loser the surface the
narrower the tyre they use...
Wide tyres sit on the top... narrow cut though
into the hard base easyer..
If yer use the ten on seal mostly the 140 could work
well for yer.. If yer ride seal & off road go with a 130.

Biggers better is not alway true..

__________________
Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...