Having used both AM21/21 combo in 19 and 18" and then changed to BT45 and now AM26 I agree. First ride on AM26 was horrible, they felt like the bike was going to roll over without any lean being introduced, very twitchy. They have bedded in OK but they don't feel right and regrettably I will go back to the Japanese tyres when these are worn out. BT45 rears have dual compound, amazing wet grip and are 10-20% lighter than the Avons. Only reason I changed was to get a 90 section on the front, BT45's smallest is a 100 in 19".I have used various Avons over the years, both on cars & bikes, & have hated every one of them, both on modern & classic. Our local tyre specialist reckons the Roadrider is good, so we will have to see. Been for one 15 mile trip so far this year with the new Avon, & wasn't too impressed, the front gave out on one corner, but maybe it was because the tyre was new & it was only 5 degrees.
If it ever stops raining, I would love to ride it again
Flo, weather will be good Sunday, heading your way for a decent run out. Have faith