CeramicSpeed BB ALPHA Bottom Bracket - BB86 86.5mm For 24mm/Shimano Spindle Road BLK ModelNumber=3227 5mm Depth 20mm Material Aluminum

5mm Depth 20mm Material Aluminum Type Tubeless Color (H/S/R) Black Weight 1150g Axle Size 12X148 Position Rear Hub Type Ratchet XD

Grip damper with 3 position damper control

3D forging

Color Black Flat Protection Sidewall TPI 60 Designed for ebike Yes Defined Color Black ISO Width (mm) 66 ISO Diameter 584 / 650b / 27

Protection from rain

CeramicSpeed BB ALPHA Bottom Bracket - BB86 86.5mm For 24mm/Shimano Spindle Road BLK ModelNumber=3227 5mm Depth 20mm Material AluminumA 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. The simplified spacer tube design and lighter 7075 aluminum cups ensure quick installation and a 10% weight reduction over previous generations. All