CeramicSpeed BB ALPHA Bottom Bracket - BB30 68mm For 24mm/Shimano Spindle Road BLK MFPN=185-0056BKG X3CC carbon composite sole with

X3CC carbon composite sole with stiffness 8 and rubber zones provides grip and ergonomic comfort

while the Nocturne design reflective details add a modern twist to your boot

PROLINK Racing classic: This low-profile racing outsole offers abrasion resistance and flexibility

Automatic keyhole cover to prevent corrosion and the ingress of dirt

The rims offer a wide 25mm inner diameter so they'll nicely fit wider tires for gravel and they're laced with 28 sturdy spokes

CeramicSpeed BB ALPHA Bottom Bracket - BB30 68mm For 24mm/Shimano Spindle Road BLK MFPN=185-0056BKG X3CC carbon composite sole withA 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