With the fast production superbikes newly available in showrooms by the early `70s - racing them in modified form - was a natural..
Here's a couple of examples..
Kawasaki Superbike Champ Winner, http://www.ma.org.au/index.php?id=1728
& Kerker Norton.. http://www.pwheelie.blogspot.com.au/...ton-racer.html
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