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Detailed information of the product:
- Bearing Cups are Made of 7075 Anodized Aluminum Alloy
- CNC Machined and Polished surface
- Bearing with Rubber Seals, Cup diameter is 41mm
- O Rings outside the Cups to give better Water Resistance and they will Decrease Bottom Bracket Noise also
- Nylon Seal outside the bearing
- For Praxis M30 Crank Axle (30mm Drive Side/ 28mm NonDrive Side)
- Ceramic bearing versions
- Weight is 54g only
- Information about Ceramics bearing:
Bearing Material: Chrome Steel 52100
Ball Material: Nitrided Silicon Ceramic SI3N4
Enclosure: 2 Rubber Seals