604ZZ miniature bearing, suitable for high-speed rotation, high temperature resistance of 180℃, can withstand high radial and axial loads. The 604ZZ aperture is 4 mm. Its outer diameter is 12 mm. 604ZZ bearing material is 52100 chrome steel, there are o
New arrival Fat Tire e bicycle folding ebike electric fat bike foldable tire bikes electrique bicycle e-bike 250w 500w 1000w electric bicycle.Disc Brakes Electric Bike,Removable Battery Electric Bike.Adults e bicycle.