103 cubic inches is about 1,688 cc
Well, it depends on what state you are in, but if you have your motorcycle license, there is no limit to how many cc bike you can have.
1 cubic inch is equal to 16.38 cubic centimeters so your 103 cid would be 1687 ccm. 103x16.38=1687.14
1690 c.c.
150cc
Please check the motorcycle manual to clarify this (related link).
49 Anything 50ccs and over requires a motorcycle endorsement.
Motorcycle
In motorcycle engines, "cc" refers to the total volume of its engine displacement in cubic centimeters.
Yes
49 cc
2377cc