SRAM DUB Threaded 68/73 Bottom Bracket
What Is It?
The SRAM DUB Threaded 68/73 is a threaded MTB bottom bracket designed for SRAM DUB cranksets and English/BSA threaded frames with 68mm or 73mm bottom-bracket shells.
It uses SRAM's oversized DUB spindle interface, which is designed to simplify crankset compatibility while providing a strong, durable connection between the crankset and bottom bracket. SRAM's DUB BSA bottom bracket is compatible with BSA 68 and BSA 73 shells.
Key Features
- SRAM DUB spindle interface
- English/BSA threaded design
- Compatible with 68mm and 73mm shells
- Sealed cartridge bearings
- Aluminium cups
- Gutter Seal Technology™ for improved protection against contaminants
- Available with standard or ceramic bearings
- Designed for SRAM DUB MTB cranksets
Specifications
| Specification |
Details |
| Product |
SRAM DUB Threaded Bottom Bracket |
| Interface |
DUB |
| Frame Interface |
English / BSA threaded |
| Shell Width |
68mm / 73mm |
| Bearing Type |
Standard / Ceramic |
| Cup Material |
Aluminium |
| Application |
MTB |
| Crankset Compatibility |
SRAM DUB |
| Weight |
Approx. 76g |
SRAM lists BSA 68 and BSA 73 as compatible shell types, with a listed weight of approximately 76g based on the BSA standard and appropriate spacers for a 68mm shell.
Benefits
-
DUB compatibility: Designed specifically for SRAM DUB cranksets.
-
Durable bearings: Sealed cartridge bearings provide smooth crank rotation and help protect against contamination.
-
Good sealing: Gutter Seal Technology helps improve protection from dirt and moisture.
-
Versatile fit: Suitable for both common 68mm and 73mm BSA MTB frames.
-
Lightweight: Approximately 76g according to SRAM.
-
Easy servicing: Threaded cups can be removed and replaced without pressing bearings into the frame.
Spacer Configuration
For a standard SRAM DUB MTB crankset, SRAM specifies different spacer arrangements depending on shell width:
| Frame Shell |
DUB MTB Spacer Setup |
| BSA 68mm |
2.5mm inner left + 2.5mm inner right + 4.5mm outer right |
| BSA 73mm |
4.5mm outer right |
For DUB MTB Wide, the spacer arrangement is different, so the crankset type must be confirmed before installation.
Best Suited For
Ideal for XC, trail, enduro, and general MTB riders using a SRAM DUB crankset with a 68mm or 73mm English/BSA threaded frame.
Important: This is a DUB bottom bracket and is not compatible with SRAM GXP cranksets. Always confirm the frame shell width and the crankset's DUB/ DUB Wide specification before installation.
