I have a 08 NRS and yes they started putting them on the Vrods in 2008 , and they help a whole bunch on Vrod they rev really high, dont forget its no problem at all to hit 90 MPH in second gear on a Vrod , most guys whith older models upgrade to a slipper there is not much of a price diffrence I think is just about 300 and all Vrod guys that do performance upgrades like bore kits and cams have to do it the stock older setup will insure problems of slipping if you dont , and yes the buell 1125s have them I have a 09 CR but have not used the slipper yet as I am still breaking it in , but looking foward to seeing how it works on this torque monster,just a incredible machine for the money