Rear Metzeler goooooone

I got 4,800km out of Metz, 6,500km out of Avon and generally 10,000km from a Bridgestone.

RHS tyre wear is a combination of camber and the fact that for us right hand turns are a lot longer than left handers ie the bike is leaned over for a greater distance. Roundabouts are also a factor.
 
Good explanation Richard. Makes sense.
 

One anti-clockwise doey for every 100k's forward ... even her out just nicely
 
My explanation would be crap tires. Both rear (4000mi) and front (5000mi) tires worn out on right side. Symmetrical mufflers and riding on the right side of the road. No I'm not riding side saddle either...