![#color_Black](http://ceramicspeed.com/cdn/shop/files/109651_109652.png?v=1692245303&width=3259)
T47a 30mm Bottom Bracket
Buy any Bottom Bracket and get a Service Kit
![#color_Black](http://ceramicspeed.com/cdn/shop/files/109651_109652.png?v=1692245303&width=3259)
Product description
T47a for 77mm asymmetrical shell.
T47a is a threaded bottom bracket shell design, utilizing the oversized interface of BB right, but with the benefit and peace of mind of a threaded interface. Compatible frames feature an asymmetrical 77mm shell width, placing the non-drive side bearing within the frame, and the drive side bearing externally.
Equipped with precision dust covers for a snug & secure fit that also fully protects the face of the bearing delivers exceptional performance without any sacrifices. CeramicSpeed hand-built bearings carry the load from crank to frame with un-paralleled durability & efficiency.
Bottom Bracket tool for installation: CeramicSpeed Dual Socket Tool T45/T47 16-notch 52,2mm cup tool diameter
In the box:
- 2 cups with CeramicSpeed bearings and dust covers
- 2-part spacer tube
- All Round Grease
- Spacers for setup & adjustments
- Decal
![](http://ceramicspeed.com/cdn/shop/files/bottom-bracket.jpg?v=1687679891&width=2500)
![](http://ceramicspeed.com/cdn/shop/files/bb_27680720-7585-4d3f-a3bf-690325bd8a07.jpg?v=1687679923&width=1500)
Lowest Friction
Optimized Power Transfer
Longest Product Lifetime
![](http://ceramicspeed.com/cdn/shop/files/standard-bearings.jpg?v=1713420713&width=1920)
![](http://ceramicspeed.com/cdn/shop/files/coated-bearings.jpg?v=1713420760&width=1920)
This product is rated 4.2 of 5.0 stars.
It has received 5 reviews.
![](http://ceramicspeed.com/cdn/shop/files/maintenance-bb_1_de9792f8-4563-4880-b274-ffd80c140b38.jpg?v=1697008511&width=3200)
General Maintenance for CeramicSpeed Bottom Bracket and Wheel Bearings
![](http://ceramicspeed.com/cdn/shop/files/Installation-of-cranks_1_13da6755-abd1-4dca-95e1-6b849146fa23.jpg?v=1697008553&width=3200)
Installation of 30mm cranks on CeramicSpeed Bottom Brackets
![](http://ceramicspeed.com/cdn/shop/files/Installation-of-bb_1_df1b5fdc-c90a-4dcd-8ceb-1fa73cb6828b.jpg?v=1697008385&width=3200)
CeramicSpeed Threaded Bottom Bracket installation guide