A Cervelo P5 (TT/tri) frame uses a BBRight press fit bottom bracket shell (46 mm bore, 79 mm). The dimensions, which cranks fit, and the exact bottom bracket to buy.
Updated 05 September 2026.
What bottom bracket does a Cervelo P5 (TT/tri) use?
The bottom bracket shell standard on a Cervelo P5 (TT/tri), and how to pick the right BB.
| Frame | Cervelo P5 (TT/tri) |
|---|---|
| Shell standard | BBRight press fit (46 mm bore, 79 mm) |
| Shell inside diameter | 46 mm smooth press-fit bore |
| Shell width | 79 mm (asymmetric, offset 11 mm to the non-drive side) |
SPINDLE see table
The Cervelo P5 (TT/tri) uses a BBRight press fit bottom bracket shell (46 mm bore, 79 mm), a 46 mm smooth press-fit bore, 79 mm (asymmetric, offset 11 mm to the non-drive side) wide.
It is a press-fit shell, so bearings or cups press into the 46 mm smooth press-fit bore. Match the shell width as well as the bore, because a shorter unit will not preload the crank across a wider shell.
SOURCES: Wheels Manufacturing, BB Overall Width Reference Chart · Park Tool, Bottom Bracket Standards and Terminology
Questions and answers
What bottom bracket does a Cervelo P5 (TT/tri) use?
A Cervelo P5 (TT/tri) frame uses a BBRight press fit bottom bracket shell (46 mm bore, 79 mm).