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Bike component fitment: bottom bracket, headset, seatpost, axle

Crank Spindle30 vs Crank DUB: specs compared

Updated 05 September 2026.

3
specs differ

Crank Spindle30 and Crank DUB differ on 3 specs: spindle diameter, designation, shells it fits.

SpecCrank Spindle30Crank DUB
Spindle diameter30 mm constant diameter28.99 mm constant diameter
Designation30 mm spindle28.99 mm spindle
Shells it fitsPF30 press fit (drops in), BB30 press fit (drops in), BB386EVO press fit (drops in), BBRight press fit (drops in), Specialized OSBB (drops in), BB392EVO press fit (MTB) (drops in), PF30A press fit (Cannondale Ai) (drops in), BB30A press fit (Cannondale) (drops in)BSA / English threaded (drops in), T47 internal (T47-85.5 / T47-86 / T47-92) (drops in), PF30 press fit (needs a reducer), BB86 press fit (road) (drops in), Italian threaded (not a simple fit), Specialized OSBB (needs a reducer)

Questions and answers

How do Crank Spindle30 and Crank DUB compare?

Crank Spindle30 and Crank DUB differ on 3 specs: spindle diameter, designation, shells it fits.

Compared here

30 mm spindle (BB30 / PF30 style) crank spindle (30 mm spindle)SRAM DUB (28.99 mm) crank spindle (28.99 mm spindle)