I dont about all the heavy etc, its the same for everyone in the class and a 50cc engine would be somewhat lighter than say a 250cc engine and you think they could make some of the components / running gear lighter still it would be somewhat heavier than a 50cc mini bike and the corner speeds like say would be incredible. I thought of you when I found this Champo, I think they are incredible
For interest the 2007 Sherco 50cc Enduro weighs 83kgs in stock trim according to the spec sheets
A 300cc TM weighs 99kgs according to the spec sheets 16kgs difference
XR650R weighs 125.6kgs according to the spec sheets 42kgs difference
TB