In the closet.. do i wanna go naked..?

Ok Forumites... i'm "between licences" at the moment and soon expect to have the capacity to legally engage in a meaningful relationship with new motorcycle..
The question is which one...
I have had a 12 month relationship with a 10R which was pretty full on and erratic, i also cheated with a 12R for a good 6 months. While i loved the big girl for her power and ability to go all night, the 10R was the one i loved... theres something about a nasty girl that turns me on... but somethings not right...
i think i want to go naked.. i'm confused.... what the difference in seat height, ride position and power output???
The question is which one...
I have had a 12 month relationship with a 10R which was pretty full on and erratic, i also cheated with a 12R for a good 6 months. While i loved the big girl for her power and ability to go all night, the 10R was the one i loved... theres something about a nasty girl that turns me on... but somethings not right...
i think i want to go naked.. i'm confused.... what the difference in seat height, ride position and power output???