Shell Bb92 vs Shell Bb90: specs compared
Updated 05 September 2026.
4
specs differ
Shell Bb92 and Shell Bb90 differ on 4 specs: shell inside diameter, shell width, thread, crank spindles it hosts.
| Spec | Shell Bb92 | Shell Bb90 |
|---|---|---|
| Type | press fit | press fit |
| Shell inside diameter | 41 mm smooth press-fit bore | 37 mm smooth press-fit bore |
| Shell width | 91.5 mm and 92 mm | 90.5 mm |
| Thread | none, two cartridge bearings in plastic cups press into the 41 mm bore | none, cartridge bearings press straight into moulded carbon seats in the 37 mm bore |
| Crank spindles it hosts | 24 mm Shimano Hollowtech II and 24/22 mm SRAM GXP natively; 28.99 mm DUB via a DUB BB92 unit | 24 mm Shimano Hollowtech II; the 37 mm bore is too small for a 30 mm spindle |
Questions and answers
How do Shell Bb92 and Shell Bb90 compare?
Shell Bb92 and Shell Bb90 differ on 4 specs: shell inside diameter, shell width, thread, crank spindles it hosts.