Originally running a Fanatec R300 rim. Saw a youtube video of a guy using a Turn 320 rim. I prefer a smaller rim so I gave the 305mm rim a try. Also got a 10mm spacer to help with fitment. Night and day difference in quality and feel over the R300. Rim fits exceptionally well on the Fanatec button module with the 10mm spacer. Not sure how, but I am posting faster lap times with this rim. Maybe it's just a confidence thing and not sure if it will make you faster but hey, maybe a bonus. Now that I've said "rim" too many times, I'm ending this review.