Bikone DCTech BB30 bottom bracket for Sram Dub cranks is designed to power every kilometer you ride. It is engineered for cyclist who demand the best in performance and durability, wheter you are teckling tough mountain trails or cruising on roads. Thanks to our Dual Cup Technology (DC Tech) and our top quality steel bearings, you will experience the smoothest of rides, no matter how rough the road gets.Features:- Dual Cup Technology. Two aluminium cups that perfectly align bearings on both sides, creating a solid center joint that eliminates any noise or movements issues. - This bottom bracket uses Chronium Steel Bearings (ABEC5 / P5 – 2RS).- The cups of our bottom brackets are made from 6061 Aluminium, an aerospace-grade aluminium with high corrosion resistance on which we apply a T6 treatment. That makes the material harder and more durable, ensuring that our cups mantain top performance over time.- Fully sealed. Axial seals on bearings and fully sealed on all surfaces.Specifications:- Crankset diameter: 29 mm- Frame width: 68/73 mm (Road and mountain bikes)- Frame diameter: 42 mm- For Pressfit frames.- Weight: 0.99 kgThis bottom bracket is compatible with the following replacements:- 30407 Steel Bearing- Adapters for PF46 / PF30 / T47 / EVO / BBright / T45 for Sram DubBikes compatible with this standard:- Specialized Crux (2018-2021)- Specialized Tarmac SL6 (2018-2022)- Specialized Allez Sprint (2017-2021)- Specialized Allez Sprint Comp 2018- Specialized Allez Sprint Comp Disc 2019- Specialized Allez DSW Sprint X1 2016- Specialized Allez Sprint Disc Frameset 2021- Specialized Venge ViAS 2016-2018- Cannondale CAAD10 2015- Cannondale CAADX 105 Disc 2015-2016- Cannondale Kekyll 7.5 2015- Cannondale Trigger 27.5 2015- Felt AR3 2015- Felt F FRD 2015- Felt IA FRD / IA 2015