SRAM DUB Pressfit MTB121 Bottom Bracket
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SRAM DUB Pressfit MTB121 Bottom Bracket Info
The SRAM DUB Pressfit MTB121 Bottom Bracket is built around SRAM's 28.99mm DUB spindle standard — a larger-diameter axle interface designed to increase stiffness and reduce bearing wear over time. This is the pressfit variant sized for MTB121 shells, making it the right choice for fat bike frames with 121mm bottom bracket shells.
DUB — Durable Unified Bottom Bracket — was developed so that a single crank platform could span the full range of frame standards on the market. The larger spindle diameter means the bearings run against a bigger surface, which reduces the load per unit of contact and extends service life under the kind of torque that mountain riding generates. Installation follows standard pressfit procedure, and the bearing cups are designed to seat cleanly in a properly faced shell.
SRAM DUB Pressfit MTB121 Bottom Bracket Specs at a Glance
- Bottom bracket standard: Pressfit MTB121 (121mm shell — fat bike)
- Spindle diameter: 28.99mm (DUB standard)
- Compatibility: SRAM DUB cranksets
- SKU: 00.6418.016.001
SRAM DUB Pressfit MTB121 Bottom Bracket Video
