Applicable range: 66-73 mm bottom bracket shell and 24 mm crank shoe barrel height 27.94 mm.Thread type: Thread type BB is suitable for mountain bikes and the thread type is 1.37 x 24T.Smooth and smooth, especially sealed high-precision peilin Axis.Durable water and dustproof. High-precision sealed bearings.High-quality aluminum alloy and PP. This bottom bracket is sturdy and durable and can be used for a long time.colour: blackMaterial: aluminum alloy + PESize: Height: 86.5-92MM, Diameter: 41MMPackage Contents:1 x crankshaft Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.