Hi Fredy,
Your JZR replica looks well done. What V twin did you use?
It resembles somewhat the most recent three-wheeler from Morgan, now apparently no longer in production (according to Jay Leno, anyway). Some years back, I visited Pete Larsen's shop in Seattle where he had designed and built the Ace prototype that Morgans bought the rights to. Pete built thirteen Aces, I believe. I'd like one!
John