Trek BB95 press fit (MTB) bottom bracket shell (37 mm bore, 95.5 mm)

What a Trek BB95 press fit (MTB) shell measures, which crank spindles it hosts, and the bottom bracket to buy.

Published dimensions

Type	press fit
Shell inside diameter	37 mm smooth press-fit bore
Shell width	95.5 mm
Thread	none, cartridge bearings press straight into moulded carbon seats in the 37 mm bore
Crank spindles it hosts	24 mm Shimano Hollowtech II; the 37 mm bore is too small for a 30 mm spindle

SHELL 95.5 mm
SPINDLE 24 mm Shimano Hollowtech II; the 37 mm bore is too small for a 30 mm spindle

Used on: older Trek full-suspension mountain frames, the wider MTB sibling of BB90.

BB95 shares the BB90 37 mm bore but in a wider 95.5 mm MTB shell. A road BB90 bearing set is too narrow to space a BB95 shell, so match the width.

Fit a crank to this shell