Seeing this picture ..... left me breathless for a while ! This is Henk Vink Montesa 247 . He was Dutch Trials Champion many times in the 60ies (James, Triumph, Montesa) and early 70ties. Then he turned to Dragracing Kawasakis " the big spender" bikes and later rocket bikes . He was Kawasaki Importer in Holland and had the special cylinder made by Jan Thiel (the famous 2 stroke tuner , Yamathi, Kreidler van Veen, Bultaco , Aprillia ) The frame was plated as you see. I bought this bike 25 years ago in boxes and still have it to restore it! This is the first colour picture I see of the bike ; just great!