Yes, technically overdrives do exist in motorcycles (Output of transmission faster than input). It is moot point for motorcycles however. Chain driven motorcycles can be re-geared simply by changing the rear chain sprocket to a smaller one.
there are some 2 wheelers with diesel engine
No, not very often.
its two stroke ngine
Most likely a restrictor plate
no minors should not be given two wheelers to drive
Depends on the dimensions of your 4 wheelers
General motor insurance plans for four-wheelers and two-wheelers by Shriram General Insurance
to start bike early in cold environment i.e. in winter season.
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The ATC 250R (1981-1986) is a two stroke. Otherwise, all Honda three wheelers were 4 strokes.
If you are talking about two wheelers, as in motorcycles, minors should not be given two wheelers to drive. A minimum age of 18 should be required since younger kids may not be responsible enough to make wise decisions when riding.
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