Premium Ceramic Si3N4 Silicon Nitride Skateboard Bearings / Set of 8

I bought these about a month ago when I was stocking up new parts for a custom board. I love them on my board, they ride so uch faster, longer, and smoother than my old abec 9 bearings. These are really great bearings. Being cermaic I also have no fears of running them in the rain. A little cleaning every so often goes a long way. Honestly I feel likeI will never put on other bearing on future boards, these are well priced and run amazingly. My board is a bit of a mix of random parts, but these will always go on any future boards I get/make.

Way better than bones ceramic, these have better tollerence (bones bearings are sloppy / moves around side to side)No problems yet, expect these to be awesome for a long time. Also they have less friction than standard bearings I would say.. Thats the main reason I bought these ceramic bearings.

Not as expected! Not a bad product but i was expencting my longboard to be faster since they are made out of ceramic and after reading some other reviews i though that was one of the pro on having caremic bearings i don't feel there is any diference with regular bearings hopefully they last longer than regular

I rode these bearings for about 3 weeks. I'm not a park rider, so I'm not hard on bearing, I was just riding to and from work. Out of the box they were not smooth, and the longer I rode them the worse they got. I finally just replaced them.

Two of the bearings i received was leaking lubricant and one of them is locking time to time. You can feel that something is in the bearing, when you test it out with your hand. otherwise, i have yet to test it out with my board. I might just return, to receive new onesEDIT: i just washed and re-lubricated that bearing, and it is just super smooth and fast!

One bearing exploded and some shattered inside. Only rode on board twice. Bad quality, not satisfied what so ever.

I bought it initially for quad skating. It spins for 120-150 seconds post 2 month of usage. Now I am using it for Inline skating. Almost 3 years now, bearing is still working and spinning for 120-150 mins. Worth to invest the money.

I have only had these bearings a short time, but they are amazing! Even on my small Sector Nine fundamentals I can cruise with almost no effort. Would definItely buy them again.