It is important to know which version of wheel your R1 has before ordering a replacement to avoid disappointment when it does not fit. There are two versions due to updated design:
Version one of the wheel had a flat design on both frame and wheel.
If you have a V2 front wheel, you should be able to clearly see a lip on both wheel and frame.
However if you are unsure of which wheel you need, remove the front wheel and take a picture from a comparable angle to the images above.
Email this image to firstname.lastname@example.org and we can advise.