It highlights the higher strength and impact resistance characteristics of Si3N4, making it better than metal bearings, Secondly, their better wear resistance and heat resistance, light weight and smoothness, reducing friction and making the cranksets smoother during rotation. Be loved and recommended by cycling enthusiasts.CNC Machining Process

Heat treated CNC process Guaranteed strength Lightweight at the same time.G3 Ceramic Bearing

1.Ceramic bearings are installed in cups.
2.High quality G3 silicon nitride ceramic beads and hardened-steel races.
3.G3 Silicon nitride ceramic beads ,it highlights the higher strength and impact

resistance characteristics of Si3N4, making it better than metal bearings, Secondly,

their better wear resistance and heat resistance,light weight and smoothness,

making the cranksets smoother during rotation. Be loved and recommended by

cycling enthusiasts.
4.Low operating noise.Model Number:BSA24↓↓↓

Color:Black ,Red

Material:Aluminum Alloy,Ceramic Palin

Weight :About 94g（Weight does not include accessories）

Shell width:68mm-73mm

Applicable Axis:φ24mm /φ22mm

Fit for :Shimano full range of cranksets,SRAM GXP road bike or MTB crankset,Rotor 3D24,Aldhu24 crankset and other brand of crankset with shaft diameter 24mm.

Model Number:BSA30↓↓↓

Color:Black ,Red

Material:Aluminum Alloy,Ceramic Palin

Weight :About 75g（Weight does not include accessories）

Shell width:68mm-73mm

Applicable Axis:φ30mm /φ30mm

Fit for :SRAM Rival 22 Force22 S900 S952 BB30 crankset,

Fit for :SRAM Red Quarq BB30 etc cranksets with 30mm diameter.

Fit for :Rotor 3D 3D30 3DF Aldhu etc cranksets with 30mm diameter.

Model Number:BSADUB↓↓↓

Color:Black ,Red

Material:Aluminum Alloy,Ceramic Palin

Weight :About 79g（Weight does not include accessories）

Shell width:68mm-73mm

Applicable Axis:φ28.99mm /φ28.99mm

Fit for :SRAM DUB specification cranksets.

Bottom Parts

Lightweight aluminum alloy is not easily deformed Built-in rubber ring to prevent

dust from entering.Model Number:BSA24↓↓↓Model Number:BSA30↓↓↓Model Number:BSADUB↓↓↓Product Packaging

Note: Due to different batches, the factory will replace the outer packaging of

the product, please refer to the actual receipt!