7075 aluminum cups precisions machined in the USA with RADIAL deep groove ABEC 5 Ceramic Hybrid "ZERO" series Enduro Bearings. These bearings are super fast rolling and utilize GRADE 3 (best available) SiN4 (Silicon Nitride) ball bearings in special vacuum de-gassed, cryogenically treated alloy steel bearing races, hardened to Rockwell C-64. The cartridges are sealed with dual-lipped silicone light contact seals.

Fits standard "BSA" threaded bottom bracket shells using Left and Right cups. With the right cranks, can also be used on 100mm and 120mm FATBIKES. Not all BB30 cranks are compatible due to varying spindle lengths. Some of the cranksets known to be compatible include:

e13 Mountain Cranks
Race Face Next SL cranks
Race Face SIXC Cinch
Race Face Turbine Cinch
Rotor 3D+ cranks
BB386 EVO Road Cranks
Cane Creek eeWings MTB Cranks

Suitable wrenches for installation include the RWC BB30 Outboard Bottom Bracket Cup Tool, Race Face Cinch BSA 30 BB Cup Tool, and Zipp Vuma Quad Cup Tool.

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