Model Number : PF30sh-B/pf30-24Material : Aluminum/AlloyUse : Mountain Bikes Name : ZTTOOrigin : Mainland ChinaZTTO PF30 -24mm Bottom BracketZTTO Thread Lock SystemEach of our bottom bracket are manufactured for best performance and longest durability.Matching top quality components and know-how, we make sure that every bottom bracket empowers every rider with opportunities to save energy or ride faster. The special design of the threaded bottom bracket, where the cups are threaded and screwed together inside the frame, ensure that you avoid any creaking sounds .Weight :About 135gForR8000,M8000,R9100 etc. most of 24mm shaft cranksetFor PF30 68/73mm 46mm Frame Shell24/24mm Spindle Cranksetalso fit for GXP(you need to buy a GXP adapter together)*We are changing the naming method, you may receive "PF30sh" or "PF30-24", they are the same product. please noteThread lock system compatibilityif you have a frame like the one on the left. please choose PF30-24 A Type.and then remove the center shell , just need 2 side cups.