Review on Uxcell 6900 2RS Groove Bearings Double by Jacob Rasmussen

Daylight could be seen through the seals. Had the same problem with two other similar brands. Finally some awesome enduro bearings! But of course they cost more. I've never had a problem buying cheap bearings. I don't know if that specific size or Covid affects quality control or what. If you want good seals, buy from known brands. If the seals aren't a major problem, they felt nice and smooth.