24mm-
SD BB30 Bottom bracket
For frames with a 42mm bottom bracket shell
Fits SD Expert Lite, Pro and Pro Hollow Cranks
For 2018 and later Meybo frames and other brands that use BB30
BMX specific bearing design
The bearings are held in place by forged and CNC machined aluminium cups that ride on the outside of the BB shell for greater durability
Compatible with cranks such as Shimano, Rhythm, Bombshell and other cranks that use a 24mm spindle
Weight 128g


30mm Through-
For frames with a 42mm bottom bracket shell
Works with cranks using a 30mm axle
For 2018 and later Meybo frames and other brands that use BB30
BMX specific bearing design
The bearings are held in place by forged and CNC machined aluminium cups that ride on the outside of the BB shell for greater durability
Weight 128g