Shell 386evo vs Shell Bbright: specs compared
Updated 05 September 2026.
2
specs differ
Shell 386evo and Shell Bbright differ on 2 specs: shell width, crank spindles it hosts.
| Spec | Shell 386evo | Shell Bbright |
|---|---|---|
| Type | press fit | press fit |
| Shell inside diameter | 46 mm smooth press-fit bore | 46 mm smooth press-fit bore |
| Shell width | 86.5 mm | 79 mm (asymmetric, offset 11 mm to the non-drive side) |
| Thread | none, cups press into the 46 mm bore | none, cups press into the 46 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 | designed around a 30 mm spindle; 24 mm and 28.99 mm cranks need a reducer BB |
Questions and answers
How do Shell 386evo and Shell Bbright compare?
Shell 386evo and Shell Bbright differ on 2 specs: shell width, crank spindles it hosts.