BB92 press fit (MTB) bottom bracket shell (41 mm bore, 91.5-92 mm)
What a BB92 press fit (MTB) shell measures, which crank spindles it hosts, and the bottom bracket to buy.
Published dimensions
| Type | press fit |
|---|---|
| Shell inside diameter | 41 mm smooth press-fit bore |
| Shell width | 91.5 mm and 92 mm |
| Thread | none, two cartridge bearings in plastic cups press into the 41 mm bore |
| Crank spindles it hosts | 24 mm Shimano Hollowtech II and 24/22 mm SRAM GXP natively; 28.99 mm DUB via a DUB BB92 unit |
SHELL 91.5 mm and 92 mm
SPINDLE 24 mm Shimano Hollowtech II and 24/22 mm SRAM GXP natively; 28.99 mm DUB via a DUB BB92 unit
SPINDLE 24 mm Shimano Hollowtech II and 24/22 mm SRAM GXP natively; 28.99 mm DUB via a DUB BB92 unit
Used on: the common press-fit MTB standard, the wider sibling of road BB86.
BB92 shares the BB86 41 mm bore but a wider 91.5-92 mm shell for MTB clearance. A road BB86 unit is too short for a BB92 shell, so match the width, not just the bore.
Fit a crank to this shell
Shimano Hollowtech II (24 mm) in a BB92 press fit (MTB) shelldrops inBB86 press fit (road)related shell (41 mm bore, 86.5 mm)
SOURCES: Wheels Manufacturing, BB Overall Width Reference Chart · Park Tool, Bottom Bracket Standards and Terminology