Product Dimensions:8.6 x 4.7 x 4.7 cm; 150 Grams Specification:Condition: 100% Brand NewItem Type: Bicycle Bottom BracketMaterial: Aluminum + BearingOuter Diameter: Approx. 42mm/1.7inchInner Diameter: 24mm/1inch (Convert to 22mm/0.9inch with swivel sleeve)BB Shell Width Compatibility: 68-73mmWeight: Approx. 147gSuitable for SHIMANO, for Prowheel, for FSA, for SRAM GXP (with additional conversion sleeve) Package List:1 * Bottom Bracket Only Commitment:Our aim is to provide high quality products. After you buy our products, I will ship them to you as soon as possible, so that you can receive the products as soon as possible. If you have any dissatisfaction after receiving our products, please contact me in time, I will reply all your questions within 24 hours, I will solve all your problems, I will give you a refund or replace the goods. We are committed to providing our customers with a great shopping experience. [High quality aluminum alloy material]---Bottom Bracket is made of high quality aluminum alloy and plastic materials, high strength and high hardness, not easy to deform, sturdy and durable.Great accessory for cycling enthusiasts. [Increase bearing life]---The two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life, and simplifying maintenance. [Lightweight]---Lightweight and small size, It is a integrated sleeve and inside bearing to make sure the bearing rotate stably. Waterproof, dust bearing and bearing shield design, which can help to prevent the erosion of sediment water. [Can reduce noise]---can reduce noise & increase rigidity, sealing system is easy to maintain and lubricate.Quality set of bottom bracket with sealed bearings, suitable for BB 30mm. [Easy to install]---Smooth rotation, easy installation and operation, which makes pedaling more labor-saving.Provides more force transmission from the pedal.Characterized by high strength and high hardness, not easy to deform. [High quality aluminum alloy material]---Bottom Bracket is made of high quality aluminum alloy and plastic materials, high strength and high hardness, not easy to deform, sturdy and durable.Great accessory for cycling enthusiasts. [Increase bearing life]---The two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life, and simplifying maintenance. [Lightweight]---Lightweight and small size, It is a integrated sleeve and inside bearing to make sure the bearing rotate stably. Waterproof, dust bearing and bearing shield design, which can help to prevent the erosion of sediment water. [Can reduce noise]---can reduce noise & increase rigidity, sealing system is easy to maintain and lubricate.Quality set of bottom bracket with sealed bearings, suitable for BB 30mm. [Easy to install]---Smooth rotation, easy installation and operation, which makes pedaling more labor-saving.Provides more force transmission from the pedal.Characterized by high strength and high hardness, not easy to deform.