I have been wanting to put a usd front end on my bike for some time, and was wondering other than forks, yokes and clip-ons/bars what is essential for the conversion? for instance what parts from the vfr could i keep and put onto the rvf front end?

pritty sure the wheel is the same, not sure about spindle and spacers, apart from that its just forks top and bottom yoke clip ons , you may be able to fit the tubes from the nc30 clip on's onto the rvf's, not sure tho

You'll need a Rick Oliver fitting kit, forks, yokes, spindle, wheel spacers, clip ons and calipers. You can re-use the wheel and discs. Funnily enough I have a nice Rvf front end in the workshop which will be for sale very soon.

how much you looking for riley? as i would be interested.