Another recommend for the dunlop AE's, not my first set either.
Avon use to be my goto tyre.
To follow up on the Avon Cobra Chrome tyres, front no issues, rear is showing cracks in several spots edge of tread pattern, 6,411 miles on them, cupping too. I’ve tried contacting Avon (won’t hold my breath) had to move on. They don't even list the 180/55VB18 (80V) now, I installed dunlop AE’s. I'm kinda hard on tires, do not abuse.
Will not be mounting any Avon Cobra Chrome tyres on my bike, till I change my mind.
Tire prices has increased this year.

edit, my reply from AVON: Hi,
Thanks for your enquiry.
Unfortunately we had to make some changes to our 180/55B18 80H Cobra Chrome and this tyre will be back in production within the next two weeks.
Regards
Avon Motorcycle Technical