Shell 386evo vs Shell Bb86: specs compared
Updated 05 September 2026.
3
specs differ
Shell 386evo and Shell Bb86 differ on 3 specs: shell inside diameter, thread, crank spindles it hosts.
| Spec | Shell 386evo | Shell Bb86 |
|---|---|---|
| Type | press fit | press fit |
| Shell inside diameter | 46 mm smooth press-fit bore | 41 mm smooth press-fit bore |
| Shell width | 86.5 mm | 86.5 mm |
| Thread | none, cups press into the 46 mm bore | none, two cartridge bearings in plastic cups press into the 41 mm bore |
| Crank spindles it hosts | designed around a 30 mm spindle in an 86.5 mm shell; 24 mm and 28.99 mm cranks need a reducer BB | 24 mm Shimano Hollowtech II and 24/22 mm SRAM GXP natively; 28.99 mm DUB via a DUB BB86 unit |
Questions and answers
How do Shell 386evo and Shell Bb86 compare?
Shell 386evo and Shell Bb86 differ on 3 specs: shell inside diameter, thread, crank spindles it hosts.