Riders with a BSA, T4530, T4730 Bottom Bracket, or if they have a PF4630 on an EVO386 frame, can utilize this kit to install a DUB crank. Crank Compatibility: SRAM DUB Frame/cup: PF30 PF30a BB30 BBright EVO386 BSA T45 T47-68mm T47-86mm In the box: 2 bearing seals 2 bearing dust covers 4 x 1mm spacers 3 x 3mm spacers 5ml CeramicSpeed All Round Grease The Story CeramicSpeed is one of the world’s leading suppliers of ceramic bearings. The company consists of two specialised sales channels, focusing on cycling and industrial applications. We have more than 15 years of experience in bearings applications, and we have developed close relationships with our component suppliers over the time – each of whom is the very best in their fields. The CeramicSpeed Sports channel delivers both bearings as well as ultrafast racing chains, reinforcing the company’s goal of saving watts and delivering the lowest friction available. All our bearings are handmade and our chains are optimised by hand in Denmark.