Custom with usual weird looks and handling but reliable enough for the first 40k when cams, valves, camchains and pistons become a little bit suspect. Some have done over 70k without falling apart. Also Jap market XV400, which is more of the same. XV535’s low mass and reasonable performance has made it popular in the UK, helped along by low maintenance shaft and rear drum.
1988 on, 535cc OHC v-twin, 45hp, 105mph, 55mpg, 410lb