I swapped these into my R3 Radar Tuners (took out the Kwik ABEC 9's that came with them) and could instantly feel the difference. My wheels feel more locked into the rink and my roll is so much smoother. Don't get me wrong, the Kwik 9's were an awesome bearing, BUT, these make the wheels feel more like they're a part of my foot... Greater stability, smoother contact, and faster/easier roll. I highly recommend these.

Got these in the mail today. Put them in my Devil Rays and got to the rink. Had to warm them up a little. In 15 min. the floor gards were telling me to slow down because I was scaring them. (LMAO) Great bearing. I am going to put these in all of my wheels !! :)

i have these in a set of labeda assaults wheels and they fly. i cant be touched in races or shout the duck race or speed skating. i am laping almost everyone. very smooth and quiet. i cant what to put them in my hyper shaman wheels that im ordering.

I don't speed skate but I do jamskate (mostly footwork, I'm too old for all that ground stuff) These bearings are so smooth and roll so easy I wouldn't use anything else, so they're not just great for speed skating.

I used to skate on bone red and switched over to the super swiss 6 and fell in LOVE with them! I roll longer and has really notice my speed increase!