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What bottom bracket does a Wilier Zero SLR (2020 on) use?

The bottom bracket shell standard on a Wilier Zero SLR (2020 on), and how to pick the right BB.

DROPS IN
A Wilier Zero SLR (2020 on) frame uses a Italian threaded bottom bracket shell (36 mm x 24 TPI).
This frame's shell
FrameWilier Zero SLR (2020 on)
Shell standardItalian threaded (36 mm x 24 TPI)
Shell inside diameter35 mm threaded bore
Shell width70 mm
SHELL 70 mm
SPINDLE see table

The Wilier Zero SLR uses a 70 mm Italian threaded shell.

Wilier keeps Italian thread across its top frames. Do not fit a BSA BB into the 70 mm Italian shell.

The bottom bracket to buy
Search Amazon for Italian threaded bottom bracket for your crank spindleaffiliate searchFind Italian threaded bottom bracket for your crank spindle on eBayaffiliate
Fit a crank to this shell
Italian threaded shell36 mm x 24 TPIShimano Hollowtech II (24 mm) in a Italian threaded shelldrops inSRAM DUB (28.99 mm) in a Italian threaded shellnot a simple fitBottom bracket for Specialized Tarmac SL8 (2024 on)related shell

SOURCES: Eminence Cycle Co, WorldTour Road Bike Bottom Bracket Standards 2020-2026 · Park Tool, Bottom Bracket Standards and Terminology · The Pro's Closet, Bottom Bracket Identification Guide