What bottom bracket does a Colnago V4Rs (2023 on) use?
The bottom bracket shell standard on a Colnago V4Rs (2023 on), and how to pick the right BB.
This frame's shell
| Frame | Colnago V4Rs (2023 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 Colnago V4Rs uses an 86 mm T47 threaded shell (M47 x 1.0).
Older Colnago frames such as the V3Rs used Italian thread. Do not assume Italian on a current Colnago, and do not assume T47 on an older one.
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 Emonda SLR (2024 on)also T47 internal (T47-85.5 / T47-86 / T47-92)
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