Ceramic Ball Bearing 17x26x5mm Sealed ABEC 3 Stainless Steel With Dual Rubber Seals Pre Lubricated Grease For Immediate Use 6803-2RS Precision Bearing Suitable For RC Vehicles Robotics Motors And General Machinery

Did the spin tests and my wheels front and back stayed spinning for 2:43 and 2:45 respectively.
I might get the sin34 full ceramic in the future but it’s super expensive.
These are on my Zipp wheels with zipp hubs and it’s a huge upgrade from the stock bearings.
Hopefully VXB will send me some discount codes so I can buy the sin34 full ceramic. :)

I use these bearings in a front and read bike hub from American classics. I just clean them and gave them a little bit of Finishline teflon ceramic grease and after 20 miles the bike runs like a dream much better than before. If you want the American classics ceramic bearings you have to pay 3 times more. PS I use ceramic bearings ceramic balls on my bikes skates and where i can put them? I'am a BIG FAN OF CERAMIK BEARINGS and these are very GOOD BE HAPPY GO CERAMIC DOCDANHOJ france

Replaced bearings in high end bicycle freewheel. At installation this bearing is much smoother than the factory bearing. Hopefully they will stay smooth.