BBright Bottom Bracket Compatibility

Also known as: BB Right, BBright Press Fit, BBright Direct Fit

BBright (a Cervélo standard) widens the shell asymmetrically — 79mm, with the extra 11mm added on the non-drive side — to increase stiffness while keeping a standard chainline. It comes in press-fit and direct-fit versions.

Its 46mm bore accepts a 30mm spindle natively, and 24mm / GXP / DUB / Campagnolo cranks via adapters. Crank spindles for BBright are often slightly longer to span the wider shell.

BBright at a glance

Fitment
press-fit
Shell
46mm bore, 79mm asymmetric (11mm wider on the non-drive side)
Shell width
79mm
Native crank
24mm (Shimano Hollowtech II)

BBright bottom brackets by crank fitment

A BBrightframe accepts different cranks depending on the bottom bracket you choose. Pick the group that matches your crankset's spindle.

For 30mm (BB30 / PF30 / 386EVO) cranks (3)

Fits: 30mm aluminium-spindle cranks — Rotor, Easton/Cannondale SI, FSA 386EVO and BB30 cranks.

For Campagnolo Ultra-Torque (25mm) cranks (3)

Fits: Campagnolo Ultra-Torque cranksets (two-piece, split 25mm axle).

For SRAM DUB (28.99mm) cranks (2)

Fits: SRAM DUB cranksets (road, gravel and MTB).

Frames with a BBright bottom bracket

9 frames in our catalogue use the BBright standard.

Cranksets that fit a BBright frame

These cranksets match a spindle standard a BBright bottom bracket supports.

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Frequently Asked Questions

Is a BBright bottom bracket threaded or press-fit?

BBright is a press-fit standard: the bearing cups press into the frame bore (46mm bore, 79mm asymmetric (11mm wider on the non-drive side)). Press-fit saves weight and allows a larger spindle, but demands tight frame tolerances and can be more prone to creaking than a threaded shell.

What shell width does a BBright frame use?

BBright frames use a 79mm shell (46mm bore, 79mm asymmetric (11mm wider on the non-drive side)). Always match your bottom bracket to both the standard and your frame's exact shell width before buying.

Which cranks fit a BBright frame?

With the right bottom bracket, a BBright frame can run cranks on several spindle standards. In our catalogue we have BBright bottom brackets for: 24mm (Shimano Hollowtech II); 30mm (BB30 / PF30 / 386EVO); Campagnolo Ultra-Torque (25mm); SRAM GXP (24/22mm); SRAM DUB (28.99mm). Pick the bottom bracket that matches your crank's spindle — most commonly 30mm (BB30 / PF30 / 386EVO).

How many BBright bottom brackets and frames are listed?

We currently track 15 BBright bottom brackets and 9 frames built to the BBright standard, checked against our compatibility engine.

My BBright bottom bracket creaks — what can I do?

Press-fit creak usually comes from insufficient preload or a bore that is fractionally out of tolerance. Options include a thread-together (compression) bottom bracket that clamps across the shell, careful greasing/retaining compound on the cups, or — on frames with a ~46mm bore — converting to a threaded T47 bottom bracket for a permanent fix.

Other bottom bracket standards

BSAT47ItalianPF30BB86BB92BB386EVO

Not sure it fits?

Add your frame, crank and bottom bracket to a build and we'll check the shell, thread and spindle automatically.

Open the Builder

15 BBright bottom brackets checked by our compatibility engine.