Five SRAM DUB bottom brackets live in the drawer. From the crank side they are interchangeable: each one hands the crank the same DUB spindle interface. From the frame side they are not interchangeable at all. Picking the right box is a question about your frame shell, and nothing else.
That is the whole shape of this category. One provided standard, five required ones. So the useful way to read the drawer is as a list of shells, and the useful way to shop it is to know your shell first. If you do not know it, we would rather you ask than guess, because a pressed cup in the wrong bore is a frame repair, not a return.
The threaded pair
Two of the five thread into the frame. They are the easiest to service at home and the easiest to identify: if you can see threads in the shell, you are in this half of the drawer. The narrower one covers the common road, gravel and trail widths. The wider one exists for downhill frames with a broad shell and a broad chainline.
SRAM DUB BSA bottom bracket, 68/73 mm
| Requires — Bottom bracket shell | BSA / English threaded, 68 mm or BSA / English threaded, 73 mm |
|---|---|
| Provides — Crank spindle | SRAM DUB (28.99 mm) |
| Manufacturer part number | BB-DUB-BSA-A1 68/73 |
| Brand | SRAM |
SRAM DUB BSA bottom bracket, 83 mm (DH)
| Requires — Bottom bracket shell | BSA / English threaded, 83 mm |
|---|---|
| Provides — Crank spindle | SRAM DUB (28.99 mm) |
| Manufacturer part number | BB-DUB-BSA-A1 83 |
| Brand | SRAM |
Note what the two rows do not say. Neither requirement mentions a bore diameter, because a threaded shell is defined by its thread and its width. That is why the threaded half of this category is short: two widths, two boxes, done.
The pressed three
The other three press into a bare shell, and here both the bore and the width matter. Read the requirement rows side by side and the family tree is obvious: a narrow bore group, a wide bore group, and an oversized bearing group that swallows the bearings inside the frame itself.
SRAM DUB PressFit bottom bracket, PF86.5/89.5/92
| Requires — Bottom bracket shell | Press-fit BB86 (41 mm bore, 86.5 mm) or Press-fit BB92 (41 mm bore, 91.5 mm) |
|---|---|
| Provides — Crank spindle | SRAM DUB (28.99 mm) |
| Manufacturer part number | BB-DUB-PF-A1 86/92 |
| Brand | SRAM |
SRAM DUB PressFit30 bottom bracket
| Requires — Bottom bracket shell | Press-fit PF30 (46 mm bore, 68 mm) or Press-fit PF30, 73 mm or BB386EVO (46 mm bore, 86.5 mm) or BBright (Cervélo, 46 mm bore, 79 mm) |
|---|---|
| Provides — Crank spindle | SRAM DUB (28.99 mm) |
| Manufacturer part number | BB-DUB-PF30-A1 |
| Brand | SRAM |
| Requires — Bottom bracket shell | BB30 (42 mm bore, 68 mm) or BB30, 73 mm or BBright (Cervélo, 46 mm bore, 79 mm) |
|---|---|
| Provides — Crank spindle | SRAM DUB (28.99 mm) |
| Manufacturer part number | BB-DUB-BB30-A1 |
| Brand | SRAM |
One provided standard, five required ones. The frame decides.
What this looks like against a real bike
| Bottom bracket shell | Press-fit BB86 (41 mm bore, 86.5 mm) |
|---|---|
| Crank spindle | Shimano Hollowtech II, 24 mm |
| Discipline | gravel |
| Brand | Canyon |
Run the drawer against that shell and only one box survives. The SRAM DUB PressFit bottom bracket, PF86.5/89.5/92 fits the Canyon Grail CF SL 7 (2025), because the required shell matches the shell on file. The SRAM DUB BB30 bottom bracket does not fit the Canyon Grail CF SL 7 (2025); neither does the SRAM DUB PressFit30 bottom bracket, the SRAM DUB BSA bottom bracket, 68/73 mm, or the SRAM DUB BSA bottom bracket, 83 mm (DH). In every one of those four cases the reason is the same: the shell does not match.
All five of those verdicts are derived, meaning one cited source states the facts behind them. No bike in our fleet is fully verified yet, and we say so rather than dress it up. Note also what the bike's own crank spindle row says: this frame is on file with a Shimano interface, not a DUB one. A DUB bottom bracket is a match for the shell, and it presumes you are fitting a DUB crank on top of it.
How to choose without guessing
Three checks, in order
- Threaded or pressed? Look into the shell with the cranks out. Visible threads send you to the BSA pair. A smooth bore sends you to the pressed three.
- Which width and bore? Read your frame maker's own sheet, not a forum. The requirement rows above are written in the same vocabulary the frame sheets use, so they compare directly.
- Confirm the crank side. Every box here provides the same DUB spindle interface. If your crank is not a DUB crank, the bottom bracket is not your answer, and swapping it will not make it one.
If you get to the second check and your frame's shell is simply not on file with us, the honest answer is unknown, and unknown is where we stop. A bottom bracket is a press into structural carbon or alloy. We do not sell a part into an unknown, and we do not let a page look finished when the measurement behind it is missing.
- Do all five of these bottom brackets take the same crank?
- They all provide the same crank spindle interface, listed as SRAM DUB (28.99 mm) on every one of the spec rows above. That is the part of the category that does not vary.
- Which one fits the Canyon Grail CF SL 7 (2025)?
- The SRAM DUB PressFit bottom bracket, PF86.5/89.5/92 fits, because the required shell matches the shell on file for that frame. The other four do not fit, each because of a shell mismatch.
- Can I use an adapter to put a threaded bottom bracket in a pressed shell?
- Not from anything in this drawer. None of these five is listed as fitting through an adapter, so we will not imply one. If your frame needs a threaded conversion, that is a different product and a different conversation.
- Why does one box list several shell standards?
- Because some shells share a bore and differ only in width, so a single cup set covers them. Read the whole requirement row: if your shell is not named in it, that box is not your box.
The short version
- All five DUB bottom brackets provide the same crank spindle interface; only the required frame shell separates them.
- Two thread in, three press in. Look into the shell before you shop.
- Against the Canyon Grail CF SL 7 (2025), only the SRAM DUB PressFit bottom bracket, PF86.5/89.5/92 fits; the other four do not.
- Every verdict here is derived from one cited source. No bike in the fleet is fully verified yet.
- If your shell is not on file, the answer is unknown, and we will not sell into it.