CeramicSpeed BB ALPHA Bottom Bracket - T47 73mm For 30mm Spindle MTB Black MFPN=EFCM640CA6X } Rear Derailleur Inner Cage

} Rear Derailleur Inner Cage Force/Rival eTap AXS Including Screws

Defined Color Black PSI 87 Weight 760 Tire Type Clincher Tire Intended Use Road Color Black Designed for ebike Yes Tire Diameter 700c Tire Bead Wire Labeled Size 700 x 38 Flat Protection Tread ISO Width (mm) 38 ISO Diameter 622 / Road / 29"

8mm of chainline adjustment via our GuideLock quick adjustment system

The ultralight construction also limits rotational mass above the bead

CeramicSpeed BB ALPHA Bottom Bracket - T47 73mm For 30mm Spindle MTB Black MFPN=EFCM640CA6X } Rear Derailleur Inner CageA 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