BBSwapFinder
Bike component fitment: bottom bracket, headset, seatpost, axle

Shell 392evo vs Shell Bbright: specs compared

Updated 05 September 2026.

2
specs differ

Shell 392evo and Shell Bbright differ on 2 specs: shell width, crank spindles it hosts.

SpecShell 392evoShell Bbright
Typepress fitpress fit
Shell inside diameter46 mm smooth press-fit bore46 mm smooth press-fit bore
Shell width91.5 mm79 mm (asymmetric, offset 11 mm to the non-drive side)
Threadnone, cups press into the 46 mm borenone, cups press into the 46 mm bore
Crank spindles it hostsdesigned around a 30 mm spindle in a 91.5 mm shell; 24 mm and 28.99 mm cranks need a reducerdesigned around a 30 mm spindle; 24 mm and 28.99 mm cranks need a reducer BB

Questions and answers

How do Shell 392evo and Shell Bbright compare?

Shell 392evo and Shell Bbright differ on 2 specs: shell width, crank spindles it hosts.

Compared here

BB392EVO press fit (MTB) bottom bracket shell (46 mm bore, 91.5 mm)BBRight press fit bottom bracket shell (46 mm bore, 79 mm)