Mixing tires?

['73 H1 Triple]

Two years ago I put a set of Bridgestone BT 021 on my '93 Kawasaki ZR1100

It's time for a new front tire ( the back still has plenty of life left in it ) but it seems the BT 021 has been discontinued. The front tire is 12/70-18 ( kawasaki thought an oddball size was a good idea? )


http://www.bikebandit.com/bridgeston...otorcycle-tire

BT 021



BT 023



I don't race, rarely go over 80 mph but like to corner ( within reason on a 1993 cycle ). See any problems?

Here's the product description from Bike Bandit
Looking for consistent performance between touring and sport riding? Bridgestone's BT-023 has a new tread pattern and rubber compound that deliver long mileage, a high level of wet performance, a comfortable ride and good grip. The rear tire's 3LC (Dual Compound) technology provides good stability and wear life in center and strong grip and bump absorption in shoulder of tire. Silica plus RC polymer (assists silica effect and controls rubber properties) enhances wet performance and wear life.


Between my AMA discount ( 10% ) and a $10 BB gift card I got with my AMA renewal, I can get the tire for $107 shipped.

Thanks
Jeff