The only place i have seen with any info is, ' Japanese Production Racing Motorcycles' by Mick Walker, but it only gives a basic evolution from 84-02, just a basic run down of the changes and updates over the years, that said it is an excellent read, although iam a bit biased cause it has a few piccies of my nipper in it when he was riding for Mick Walker racing.
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Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto