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Featuring a dual phased-pawl drive mechanism accomplishing 90 POE and 4degree engagement by way of a six pawl driver and 45 tooth drivering
(2) compression olives
Double "snap" seals for water and dirt protection Bottom Bracket Shell I
Fiberglass Composite with Rubber Inserts
KMC e10 EPT eBike chains provide high performance and durability to support the demands and use of eBike systems
CeramicSpeed BB ALPHA Bottom Bracket Bearing Kit - For BB90 Compatible 24mm/Shimano Spindle Road Optimized BLK MFPN=BB20.P-BSA73.K Featuring a dual phased-pawl driveA bottom bracket built to outlast your frame BB ALPHA features hardened stainless steel races hand built with grade 3 Silicon Nitride ceramic balls custom engineered seals and precision dust covers delivering up to 500% better moisture protection while still providing ultra low friction performance. All CeramicSpeed BB ALPHA models are handbuilt in Denmark and backed by a lifetime warranty. Hardened Stainless Steel races offer exceptional corrosion
