Jan Kostwinder is a man with a life-long racing experience.
Jan is one of the very few Dutchmen with Trophies from the Isle of Man. Actually he has the beautiful collection of not less that 9 Silver Trophies ! Here he is at the start of the 125 ccm race in 1973, carrying number 60#. Jan got home 2nd in this race for the World Championship on his Yamaha. The race was won by Tommy Robb riding the ex-Chas Mortimer Yamaha YZ623C.