With Avon and Bridgstone drying up I found a decent economical tire that is available. Its a copy of a Bridgstone spitfire tread.
Shinko 10 SR 712F rear – 110/90 – 19 – 62H with 130MPH speed rating
Shinko 10 SR 712F rear – 110/90 – 19 – 62H with 130MPH speed rating