Hello, no question is a dumb question.
There are only a few differences between the X and the R and these are as follows:
Front fork, front disc brake rotor, front brake caliper, front mudguard, front light cowling, tank cowlings, rear light cowling, rear swngarm and of course front and rear rims and tyres.
I will now move this post to the general discussions area as it doesn't belong in the Newbie Reception Lounge,
Thanks