I did both ends a week ago, K3 front and rear, did the 140 cause I'm cheap,, so far I'm happy, smooth ride, Way better than the worn out Scorps that were on the bike when I bought it.. I'm a old very mello rusty rider, so we'll see. Did 100 miles on them on hard pack logging roads.. and about 70 on the pavement.. They do whistle above 55MPH but not as loud as my Jeep so I'm happy..
Very happy with the width compared to the 150's not much change and the tire has a more round profile which I like..
Freedom is a delicate thing.
More easily lost than gained.