Garage Gyms (great and fun resource) rated the knurling of the SS bearing bar as a 10 of 10 and noted that -of the all the bars reviewed (which includes numerous bars well north of $1000) this is only one of two to receive a 10 of 10 rating. Well, with the exception of center knurling, the shaft and knurling on this bar is identical. If you are looking for a very reasonably priced bar with unsurpassed “grip” -you need look no further. I hold Rogue in the highest regard -in fact, I purchased five Rogue bars (over the years) before discovering AB. I originally purchased the California bar and, as time went by, I found myself using this bar most all of the time. As to why, well my gym is in my house -not a garage or a basement- and quiet is all for the good! Also -the California bar simply has a great “just feels tight and right” quality. As mentioned in other reviews, dropping a Rogue bar is a noisy affair -dropping a California Bar results in a satisfying “whoomp” -no rattle -no clank (the same can definitly be said about this SS bar). I absolutely love the grip on the California bar. That said, the grip on this bar is “amazing 2.0”! When it comes to OLY lifts, the spin/rotation on this SS bar is absolutely spot on. I cannot comment on how this bar performs under competitive OLY loads -but as a power oriented lifter who regularly includes OLY lifts in my routine, this is simply the best bar out there in this price range -and the fact that this bar is drop dead gorgeous -well that doesn’t hurt either. Finally, thanks to all the thoughtful reviews from fellow AB purchasers -if you are considering a bar at this price point, reading reviews from purchasers of other quality bars is definitely the way to go!