VGEBY BSA Innenlager Hole Axle Bike Parts for Square Taper Shaft Crank(68X120L)

[SEALED BEARING]Sealed cartridge bearing assembly - maintenance-free sealed cartridge prevents dirt, mud and water from entering [SMOOTH SURFACE]Fine workmanship, small dimension error, 2 bearing precision thread design allows it to better connect to the bike arm [Long service life]The bottom bracket is strong and durable with a long service life.Please use the BB tool to install and replace the bottom bracket for safety reasons [BSA BUILT-IN DESIGN]The integrated system can protect the frame, more power, it is better than ordinary structure crankset [HIGH STRENGTH SHELL]The steel shell can absorb roundness tolerances when installing the bottom bracket ports. Suitable for 68mm frame shell