ORIGINAL: allans
A destroked 20 cc ( I have 2 - they are bullit proof and powerfull) will be as heavy as a 20cc and less powerful.
I entirly new , lighter crankcase and cylinder will be needed.
Is that fact in the ''rumour mill'' chatter?
Nothing from the "rumor mill", but I couldn't agree more. Making a smaller displacement engine a waste of time without significant corresponding size and weight reductions! If they can do that and keep it reliable, bring it on!