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Discussion Starter #1
I’m off work ill at moment and clearly have too much time on my hands.
I was wondering why does our bikes have an 310 or 313 cc to be exact engine size ?
Is to do with taxation classes, learner rules, laws on engine sizes in other countries.
Why not 350 or 400. Or even 450 which would allow to be used in international rally raid events.
Just wondering why.
 
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