Bottom Bracket
frame
The bottom bracket (BB) is the bearing assembly that allows the crankset to rotate inside the frame's bottom bracket shell. It's one of the most important interfaces on a bike because of the load it carries and how often it sees water and grit.
There are many BB standards, broadly split into:
- Threaded — cups thread into the frame (BSA/English, T47, Italian).
- Press-fit — bearings or cups press directly into the frame (BB30, PressFit 86/92, BB386EVO, etc.).
Within each standard, there are variations in shell width, bearing diameter, and crank spindle diameter. Crank-to-frame compatibility often requires the right BB cup or adapter.
Shop Bottom Bracket
View all
FEATUREDPREORDER
CeramicSpeed
CeramicSpeed Alpha Bottom Bracket BB
S$609
accessories
IN STOCK
PRO
TRIPEAK Jetstream Pro Ceramic Bottom Bracket BSA (68mm) ITA T47 (77.5mm) T47 (86mm) BB86 BB30 PF30(68mm) BBRight (79mm) BB386
S$395
accessories
PREORDER
Shimano
Ceramic speed BSA BB Bottom Bracket Coated Shimano DUB ceramicspeed
FromS$388
accessories
PREORDER
Shimano
Ceramic speed PF4130 BB86 EVO386 BB Bottom Bracket Coated Shimano DUB
FromS$388
accessories