BKC-54103 - XD15 Ceramic-Hybrid, ABEC-5, Bottom Bracket Bearing Kit for Shimano 24mm x 37mm External Cup BBs TH-873 This bottom bracket requires two

This bottom bracket requires two bearings

MR 17287 LLU/LLB C3 - ABEC-5

we press XD15 45 Angular Contact bearings into precision machined aluminum threaded aluminum cups that simply thread directly into the BB shell

thread-together solution allows you to securely fit your Campy cranks into your press-fit BB30A frameset without any hassle

500 AF Delrin pulley material features a high mechanical tensile strength and rigidity

BKC-54103 - XD15 Ceramic-Hybrid, ABEC-5, Bottom Bracket Bearing Kit for Shimano 24mm x 37mm External Cup BBs TH-873 This bottom bracket requires twoBKC 54103 XD15 Ceramic Hybrid, ABEC 5, Bottom Bracket Bearing Kit for Shimano 24mm x 37mm External Cup BBs Enduro's top of the line BB bearing kit, we couple our XD15 Ceramic Hybrid, ABEC 5 bearings along with all of the necessary seals and spacers to complete a precise, professional installation. An Enduro Bearings exclusive, our XD15 Ceramic Hybrid bearings combine corrosion proof, cryogenically treated nitrogen steel races with Silicon Nitride