I have a mountain bike with rigid fork that is used exclusively on asphalt roads and pavements for fitness rides. I currently have Continental SportContact 26x1.3 slick tires on the bike. I do also have Specialized Nimbus Armadillo 26x1.5 tires as spares.
I have heard of roadies using 700x25mm tires on the rear, coupled with 700x23mm tires on the front. I'll like to have my Conti 26x1.3 mounted on the front rim, and the Nimbus 26x1.5 on the rear. I am just interested in what kind of ride I can get out of this mix.
The Conti are totally smooth, while the Nimbus has a little thread.
Am I risking anything "safety-wise" here?
Does anybody know what "ride characteristics" to expect?
Thanks for all responses.