They would be good on the front, but on the back you need the wider tyre, I just put a set of Roadriders on my 850 Featherbed, what a big differance it made to the handling, they run a bit more air in these compard to the old K81's, for the roadriders I was told to run these pressures 35-38 PSI on the back and 32-35 PSI on the front.
Ashley