I have just been offered a set of Deuce Kury risers model 1725 link
here.I have read the Tim Skelton article about risers and I know that standard deuce fit but do these. They are brand new and sealed and so I cannot unpack them to see if they will fit BUT they are the right price.
Colin, I do not know for sure... never knew Kury even made them. But they look very similar to the originals (and actually most of the J & P Cycles deuce risers we use are just knockoffs of actual Harley risers anyway) (HD=$100).
http://www.jpcycles.com/product/5000728?N=0&Ntt=deuce%20risers&Ntk=AllKury

J & P

They came on my supervalked IS, which also came with
all new braided stainless lines.... but I think if they require anything, it is just for the OE throttle cables to be rerouted inside the triple tree; and if that didn't work, just new throttle cables would be necessary. I'm pretty sure no change in clutch or brake hydraulic lines is necessary. I think Marty has the deuce risers on Sandman.
Remember, the circular tabs on the bottom of these risers must be cut off to use on Valk.