Darkside questions

[trosco]

sid and dk and all; I don't eperience tread wear or cupping issues with the stones that most report. have 20,000 on orig front on bike and will replace after brp ride. got 13,000 with no cups on orig rear stone and replacement has 7,000 will last to switch out when i do front. actually think stones are good tires.
I want rear ct for improved ride as wife still wants me to go back to goldwing. also want improved ground clearance. the 60 and 55 series won't add to clearance and shorter side wall means a little less cushion also so prefer to not go that route although truck tire vs car tire makes me wonder.
The gear ratio / speed effect is small but there is an effect. My stock speedo is fast about 7-8% so when you show 75 you are doing 70 and with a 195/60 i calc error will increase by 2% to 9-10% so when you show 75 you are doing 68. If you go with 195/65 i calc error will dcrease from +7-8% to +3-4% so then 75 will really be 72-73. side bennie is odometer will understate mileage on bike by 4%. So lots of thinkin still being done by me. look forward to our talks on brp ride.