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What bottom bracket does a Cannondale SuperSix EVO 4 (2021 on) use?

The bottom bracket shell standard on a Cannondale SuperSix EVO 4 (2021 on), and how to pick the right BB.

DROPS IN
A Cannondale SuperSix EVO 4 (2021 on) frame uses a BSA / English threaded bottom bracket shell (1.37" x 24 TPI).
This frame's shell
FrameCannondale SuperSix EVO 4 (2021 on)
Shell standardBSA / English threaded (1.37" x 24 TPI)
Shell inside diameter1.37 in (about 34.8 mm) threaded bore
Shell width68 mm (road), 73 mm (MTB), 83 mm and 100 mm (fat / DH)
SHELL 68 mm (road), 73 mm (MTB), 83 mm and 100 mm (fat / DH)
SPINDLE see table

The Cannondale SuperSix EVO 4 uses a 68 mm BSA threaded shell, a change from the BB30 of earlier generations.

Cannondale returned to BSA on the 4th-gen SuperSix. Do not assume BB30 on a current Cannondale.

The bottom bracket to buy
Search Amazon for BSA / English threaded bottom bracket for your crank spindleaffiliate searchFind BSA / English threaded bottom bracket for your crank spindle on eBayaffiliate
Fit a crank to this shell
BSA / English threaded shell1.37" x 24 TPIShimano Hollowtech II (24 mm) in a BSA / English threaded shelldrops inSRAM DUB (28.99 mm) in a BSA / English threaded shelldrops inSRAM GXP (24/22 mm) in a BSA / English threaded shelldrops inBottom bracket for Specialized Tarmac SL8 (2024 on)also BSA / English threadedHeadset on this framesame frame, headsetThru-axle on this framesame frame, axle

SOURCES: Eminence Cycle Co, WorldTour Road Bike Bottom Bracket Standards 2020-2026 · Park Tool, Bottom Bracket Standards and Terminology · Wheels Manufacturing, BB Overall Width Reference Chart