There are some differences, they include;
As standard on the RR
Centax clutch (huge difference)
Clutch type 2 speed
30mm rear tyre set-up
Std sway bars
overdriven front end.
Assuming you fitted the same powerplant into both vehicles the centax clutch would transfer the power more effectively than the Std clutch providing far better acceleration.
My v-one-s is as near to V-one-rr specs as you can get and owes me more than $1300 to date and has no Centax clutch and no cltch type 2-speed!
If ya want an S buy an S if ya want an RR, buy an rr!