Shell 392evo vs Shell Pf30a: specs compared
Updated 05 September 2026.
2
specs differ
Shell 392evo and Shell Pf30a differ on 2 specs: shell width, crank spindles it hosts.
| Spec | Shell 392evo | Shell Pf30a |
|---|---|---|
| Type | press fit | press fit |
| Shell inside diameter | 46 mm smooth press-fit bore | 46 mm smooth press-fit bore |
| Shell width | 91.5 mm | 73 mm (asymmetric, for Cannondale Ai offset rear) |
| 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 a 91.5 mm shell; 24 mm and 28.99 mm cranks need a reducer | 30 mm native; 24 mm Shimano and 28.99 mm DUB need a reducer |
Questions and answers
How do Shell 392evo and Shell Pf30a compare?
Shell 392evo and Shell Pf30a differ on 2 specs: shell width, crank spindles it hosts.