What bottom bracket does a Trek Emonda SLR (2024 on) use?
The bottom bracket shell standard on a Trek Emonda SLR (2024 on), and how to pick the right BB.
This frame's shell
| Frame | Trek Emonda SLR (2024 on) |
|---|---|
| Shell standard | T47 internal (T47-85.5 / T47-86 / T47-92) (M47 x 1.0, 85.5-92 mm) |
| Shell inside diameter | about 46 mm bore, cut with an M47 x 1.0 thread |
| Shell width | 85.5 mm, 86 mm and 92 mm |
SHELL 85.5 mm, 86 mm and 92 mm
SPINDLE see table
SPINDLE see table
The Trek Emonda SLR from model year 2024 uses an 86 mm T47 threaded shell, cut with the M47 x 1.0 thread.
Emonda SLR frames from 2020 to 2023 used Trek's BB90 press-fit shell instead. A T47 BB will not fit a BB90 frame, so check the model year.
The bottom bracket to buy
Search Amazon for T47 internal (T47-85.5 / T47-86 / T47-92) bottom bracket for your crank spindleaffiliate searchFind T47 internal (T47-85.5 / T47-86 / T47-92) bottom bracket for your crank spindle on eBayaffiliate
Fit a crank to this shell
T47 internal (T47-85.5 / T47-86 / T47-92) shellM47 x 1.0, 85.5-92 mmSRAM DUB (28.99 mm) in a T47 internal (T47-85.5 / T47-86 / T47-92) shelldrops inBottom bracket for Trek Madone SLR Gen 8 (2024 on)also T47 internal (T47-85.5 / T47-86 / T47-92)Headset on this framesame frame, headsetThru-axle on this framesame frame, axle
SOURCES: Eminence Cycle Co, WorldTour Road Bike Bottom Bracket Standards 2020-2026 · Escape Collective, Threaded #12: the woes of T47 bottom brackets · White Industries, Internal T47 Bottom Bracket