I put Road Pilots on mine last year £140 from Germany with three day delivery, the road tyres make a difference especially on Autobahns , the bike feels much smoother and wet/dry grip is superb. Much better than the T66's ,Tourances or Distanzias tthat I'd run before.
The rear Road Pilots look good for 8000 plus and the front at least 10 thousand.
I was geting 5000 to a rear Distanzia and 6500 to a rear Tourance.