In reply to mikehike:
Apart from the drivetrain, the spec sheets 'looks' the same.
But the pictures for the VR shows SRAM brakes, not Shimano. Q&A mentions this: it does come with the SRAM brakes.
So the spec sheet is wrong, which raises questions about other components, hence possible differences in weight?
I expect the sunrace/suntour kit weighs bit.
The wheels do have very slightly different stickers on, so may be a lighter version on VR