40-Series Cartridge Bearing Kit - 41 mm / 52 mm

The 40-Series cartridge bearing kit lives up to its reputation with quality construction and smooth, durable performance. After a few weeks of use, I'm very satisfied and would recommend this kit for anyone seeking an upgrade.

The 40-Series Cartridge Bearing Kit is a satisfactory bearing replacement for the right application, providing an affordable upgrade option with decent quality and performance for general repairs though not ideal for high-speed or heavy use.

The 40-Series Cartridge Bearing Kit is a solid, affordable option for basic projects and repairs, with decent quality bearings that have performed well for me as a casual DIYer.

While this basic zinc-coated steel cartridge bearing kit with its 36 x 45 degree angles seems innovative, after extensive testing, the quality and performance of the 40-Series are simply second to none compared to similar products.

This bearing kit is pretty good for general use. It's held up fine for me over the past few weeks without any real issues.

I got these bearings to trick out my ride and at first I was pumped cuz they're zinc coated so you know they're sick. They let me pull some crazy turns and drifts so I'd say they're worth it if you're into that.