When it comes to dual compound tyres,well actually at risk of getting nerdy there are 3 compounds 1+2 on the front and 2+3 on the back,the two tyres that have steam rollered the sports touring market for big bikes are the Road Smart and the Mich Road02/3 range,both wear well in comparison with anything else,the Mich's do wear better but the Road Smarts turn at warp speed by comparison,on a big bike can be a bit of a frightener for the first few miles.

I have actually used both,out of choice I'd prefer Road Smarts,but oddly I have a 955 Triumph Tiger that I converted from a 19" front wheel to a 17" and I run Michs on it as they steer slower which is what I wanted,I'd love to try RS's on it but would be bonkers.

All of the above was put to good use when in 3500 miles I'd done 4 rears and 3 fronts using tyres that looked the part!!! on my XT,went to Road Smarts and and at long last some decent wear,but as I said earlier you will get more with the Mich's but there's a price to pay.