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1979 - My first road -Yamaha FS1 50cc 2

1979 - My first road race crash - Yamaha FS1 50cc - Published in Bike & Track Magazine

1980 - Bike SA Article - Download here 

1981 - IT250G Super Single

1981 - YZ250H - Lichtenburg 6-hour 1981

1982 - Lichtenburg 6-hour

1982 - YZ250G Super Single - Kyalami

1984 - RD350YPVS Production Bike 4

1985 - William Walker 2, KooZ 1

1986 - RD350YPVS Production Bike 

1987 - Bike SA Article

    1987 - Yamaha YZ250N Engine, TZ250L Frame

           1988 - Brutus 250GP Bilke

1988 - Brutus 250GP Bilke Specifications - Download here 

1988 - Jaap & Koos

1988 -Brutus 250GP Bilke 4

 

Click on the links below to watch videos of Z-Factor Racing in action

 
Zwartkops Super Singles National 1987 - Heat 3

Zwartkops Regional Short Circuit Motorcycle Racing - 1986

Rand Airport National Super Singles 1987