David Silver lists a "pattern" seat that looks very much like the original one on my 550k0, but it is listed
as being for a "500 four k1". Anyone know if it will bolt on to a U.S. spec 550k0 and fit like an original? The only other seat they list for a 550k model is for a k3, which looks like a '77 up (?) U.S. model. Thanks..jim