Handmade ceramic bearings in aluminum bearing shells for 30mm cranks.
The CeramicSpeed T47a 30mm is an asymmetrical bottom bracket and designed for bicycle frames with a housing width of 77mm. CeramicSpeed bottom brackets offer extreme stiffness, low friction, high reliability and unmatched durability. All bearings from CeramicSpeed are equipped with high-quality CeramicSpeed balls and have been pressed into shells made of aluminum. The ceramic balls, are rounder, smoother, harder, lighter and more durable than steel balls.
The CeramicSpeed T47a reduces drag by 75% compared to traditional bottom brackets. The precision dust caps have a snug and secure fit. These fully protect the face of the bearing while providing exceptional performance without sacrificing.
Included:
- 2 bearing cups with CeramicSpeed bearings and dust caps.
- 2-piece spacer tube
- CeramicSpeed grease
- Spacer for adjustments
- sticker
